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Ishita Roy

What Is The 'Meal Memory' Cell That Leads To Overeating?

A team of researchers has discovered a group o<sup></sup>f brain cells responsible for creating “meal memories” — a finding that could explain why people often overeat after forgetting a recent meal. Published in <em>Nature Communications</em>, the study reveals how these neurons not only store information about what was eaten but also when it was consumed. The research, conducted on laboratory rats, may offer new insights into eating disorders, memory loss, and even distracted eating habits.

<h4>The Brain’s Food Log: What Are Meal Engrams?</h4>

Scientists observed that while eating, a specific set of neurons in the ventral hippocampus became active. These neurons formed what researchers are calling meal engrams — memory traces that preserve the details of eating experiences, including the place and time a meal occurred.

“Meal engrams function like biological databases,” explained Scott Kanoski, senior author of the study and professor at USC Dornsife. “They help the brain log not just the food, but the full context of the meal.”

Engrams have long been known to store different types of memories. This study is the first to identify engrams tied specifically to eating.

<h4>Why This Matters: <span rel="noindex">Overeating</span> and Memory Loss</h4>

The findings could help explain why individuals with memory impairments — such as those with dementia or brain injuries — may eat multiple meals in a short span of time. If the brain cannot properly recall a recent meal, it may mistakenly interpret hunger signals and prompt overeating.

Disordered eating can also be triggered by distracted eating. Whether it’s watching TV or scrolling on a phone, these distractions may interfere with how effectively the brain forms meal memories. According to lead author Lea Decarie-Spain, these interruptions weaken or prevent the creation of complete meal engrams. Without these memory markers, the brain may fail to recognize that a meal has already been consumed.

The study showed that rats formed meal memories during short pauses between bites — moments when their brains naturally surveyed the environment. These pauses are key to integrating various streams of information such as time, place, and sensory details. When attention is disrupted during these pauses, memory formation suffers.

Using advanced neuroscience tools, researchers monitored brain activity in real-time as the rats ate. When the <span>meal memory</span> neurons were destroyed, the rats forgot where food was located but could still perform non-food-related memory tasks. This suggests that these neurons are uniquely dedicated to processing meal-related memories.

Further analysis showed that these neurons communicate with the lateral hypothalamus, a brain area crucial for regulating hunger. When this link was blocked, rats overate and could not remember meal details — further proving the importance of this memory mechanism.

<h4>A New Angle on Obesity Treatment</h4>

Kanoski believes this research opens new avenues for managing obesity and disordered eating. While current approaches largely focus on calorie restriction and exercise, strengthening meal memory formation could become an equally important strategy.

“Remembering what and when you ate could be just as vital as making healthy food choices,” he said.

In a world filled with distractions, this study underscores the power of mindful eating — not just for the sake of enjoyment, but for better memory, appetite control, and long-term health.

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A team of researchers has discovered a group of brain cells responsible for creating “meal memories” — a finding that could explain why people often overeat after forgetting a recent meal. Published in Nature Communications, the study reveals how these neurons not only store information about what was eaten but also when it was consumed. The research, conducted on laboratory rats, may offer new insights into eating disorders, memory loss, and even distracted eating habits.The Brain’s Food Log: What Are Meal Engrams?Scientists observed that while eating, a specific set of neurons in the ventral hippocampus became active. These neurons formed what researchers are calling meal engrams — memory traces that preserve the details of eating experiences, including the place and time a meal occurred.“Meal engrams function like biological databases,” explained Scott Kanoski, senior author of the study and professor at USC Dornsife. “They help the brain log not just the food, but the full context of the meal.”Engrams have long been known to store different types of memories. This study is the first to identify engrams tied specifically to eating.Why This Matters: Overeating and Memory LossThe findings could help explain why individuals with memory impairments — such as those with dementia or brain injuries — may eat multiple meals in a short span of time. If the brain cannot properly recall a recent meal, it may mistakenly interpret hunger signals and prompt overeating.Disordered eating can also be triggered by distracted eating. Whether it’s watching TV or scrolling on a phone, these distractions may interfere with how effectively the brain forms meal memories. According to lead author Lea Decarie-Spain, these interruptions weaken or prevent the creation of complete meal engrams. Without these memory markers, the brain may fail to recognize that a meal has already been consumed.How the Brain Records a MealThe study showed that rats formed meal memories during short pauses between bites — moments when their brains naturally surveyed the environment. These pauses are key to integrating various streams of information such as time, place, and sensory details. When attention is disrupted during these pauses, memory formation suffers.Using advanced neuroscience tools, researchers monitored brain activity in real-time as the rats ate. When the meal memory neurons were destroyed, the rats forgot where food was located but could still perform non-food-related memory tasks. This suggests that these neurons are uniquely dedicated to processing meal-related memories.Further analysis showed that these neurons communicate with the lateral hypothalamus, a brain area crucial for regulating hunger. When this link was blocked, rats overate and could not remember meal details — further proving the importance of this memory mechanism.A New Angle on Obesity TreatmentKanoski believes this research opens new avenues for managing obesity and disordered eating. While current approaches largely focus on calorie restriction and exercise, strengthening meal memory formation could become an equally important strategy.“Remembering what and when you ate could be just as vital as making healthy food choices,” he said.In a world filled with distractions, this study underscores the power of mindful eating — not just for the sake of enjoyment, but for better memory, appetite control, and long-term health.

what is the 'meal memory' cell that leads to overeating?

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<span>Cancer</span> is one of the most feared diseases in the world today. While we often focus on genetics or environmental pollution, it’s easy to overlook something closer to home—our daily <span>diet</span>. What we eat may quietly be increasing our risk of developing cancer. In a recent video that's making rounds on social media, Dr. Saurabh Sethi, a Harvard-trained gastroenterologist, on his Instagram account @doctor.sethi with 1.1million followers shared a video that highlighted six foods we often eat without a second thought—foods that research has linked to cancer development and progression.

Here’s a closer look at those six foods, and healthier swaps that can protect your health.

Think sausages, bacon, salami, and deli meats. These are convenient and packed with protein—but they come with a big catch. According to the World Health Organization, these meats are classified as Group 1 carcinogens. That means there’s strong evidence linking them to cancer, particularly colorectal cancer.

Dr. Sethi points out that the nitrates and preservatives used to keep these meats fresh can harm the gut lining and trigger cancerous changes over time. If you're craving something savory, try grilled tofu, boiled eggs, or home-cooked chicken instead.

From sodas to packaged fruit juices and flavored iced teas, sugary drinks are everywhere. But did you know they can do more than just spike your blood sugar? According to Dr. Sethi, they also contribute to chronic inflammation—a key player in cancer. Studies have linked excessive sugary drink consumption to a higher risk of breast, pancreatic, and colon cancers.

Want something refreshing but safe? Choose coconut water, lemon-infused water, or herbal teas.

Crispy snacks like fries, pakoras, and samosas are comfort foods, especially during monsoon or festive seasons. But when food is deep-fried—especially in reused oil—it can produce a chemical called acrylamide. This compound has been linked to cancer in various studies.

Instead of deep frying, try air-frying, baking, or even pan-roasting your favourite snacks. You’ll cut down on harmful compounds without compromising too much on taste.

Love a good barbecue? Be careful. Cooking meats at high temperatures, especially until they’re charred or burnt, can produce harmful chemicals like heterocyclic amines (HCAs) and polycyclic aromatic hydrocarbons (PAHs), both linked to cancer risk.

Dr. Sethi suggests marinating your meat and adding herbs like rosemary, which can help reduce these chemicals. Or better yet, try steaming, baking, or slow cooking your meals for a safer—and often more flavorful—experience.

Many people assume a drink or two is harmless. But even moderate alcohol consumption can raise your risk of certain cancers, particularly breast and liver cancer. Alcohol affects hormone levels and interferes with the body’s ability to repair DNA.

Healthier alternatives? Fermented drinks like beetroot kanji, kombucha, or even plain sparkling water with lemon can keep you refreshed—without the risks.

Instant noodles, chips, and ready-to-eat meals might be a time-saver, but they’re loaded with preservatives, artificial flavoring, and very little nutritional value. Dr. Sethi warns that these foods promote chronic inflammation, which is closely linked to cancer.

Choose fresh, homemade options like oats upma, mixed veg khichdi, or millet porridge. These dishes are not only filling but also full of fiber and essential nutrients.

Diet is just one piece of the puzzle. Studies consistently show that regular physical activity plays a big role in preventing cancer. Exercise helps regulate hormones, reduce inflammation, and maintain a healthy weight—all of which support your body in fighting off disease.

food that increases cancer risks

cancer

cancer food

cancer survivor

Cancer is one of the most feared diseases in the world today. While we often focus on genetics or environmental pollution, it’s easy to overlook something closer to home—our daily diet. What we eat may quietly be increasing our risk of developing cancer. In a recent video that's making rounds on social media, Dr. Saurabh Sethi, a Harvard-trained gastroenterologist, on his Instagram account @doctor.sethi with 1.1million followers shared a video that highlighted six foods we often eat without a second thought—foods that research has linked to cancer development and progression.Here’s a closer look at those six foods, and healthier swaps that can protect your health.        View this post on Instagram            A post shared by Saurabh Sethi (@doctor.sethi)]]>Ultra-Processed MeatsThink sausages, bacon, salami, and deli meats. These are convenient and packed with protein—but they come with a big catch. According to the World Health Organization, these meats are classified as Group 1 carcinogens. That means there’s strong evidence linking them to cancer, particularly colorectal cancer.Dr. Sethi points out that the nitrates and preservatives used to keep these meats fresh can harm the gut lining and trigger cancerous changes over time. If you're craving something savory, try grilled tofu, boiled eggs, or home-cooked chicken instead.Sugary DrinksFrom sodas to packaged fruit juices and flavored iced teas, sugary drinks are everywhere. But did you know they can do more than just spike your blood sugar? According to Dr. Sethi, they also contribute to chronic inflammation—a key player in cancer. Studies have linked excessive sugary drink consumption to a higher risk of breast, pancreatic, and colon cancers.Want something refreshing but safe? Choose coconut water, lemon-infused water, or herbal teas.Deep-Fried FoodsCrispy snacks like fries, pakoras, and samosas are comfort foods, especially during monsoon or festive seasons. But when food is deep-fried—especially in reused oil—it can produce a chemical called acrylamide. This compound has been linked to cancer in various studies.Instead of deep frying, try air-frying, baking, or even pan-roasting your favourite snacks. You’ll cut down on harmful compounds without compromising too much on taste.Charred or Burnt MeatsLove a good barbecue? Be careful. Cooking meats at high temperatures, especially until they’re charred or burnt, can produce harmful chemicals like heterocyclic amines (HCAs) and polycyclic aromatic hydrocarbons (PAHs), both linked to cancer risk.Dr. Sethi suggests marinating your meat and adding herbs like rosemary, which can help reduce these chemicals. Or better yet, try steaming, baking, or slow cooking your meals for a safer—and often more flavorful—experience.AlcoholMany people assume a drink or two is harmless. But even moderate alcohol consumption can raise your risk of certain cancers, particularly breast and liver cancer. Alcohol affects hormone levels and interferes with the body’s ability to repair DNA.Healthier alternatives? Fermented drinks like beetroot kanji, kombucha, or even plain sparkling water with lemon can keep you refreshed—without the risks.Ultra-Processed Packaged FoodsInstant noodles, chips, and ready-to-eat meals might be a time-saver, but they’re loaded with preservatives, artificial flavoring, and very little nutritional value. Dr. Sethi warns that these foods promote chronic inflammation, which is closely linked to cancer.Choose fresh, homemade options like oats upma, mixed veg khichdi, or millet porridge. These dishes are not only filling but also full of fiber and essential nutrients.Don’t Forget to MoveDiet is just one piece of the puzzle. Studies consistently show that regular physical activity plays a big role in preventing cancer. Exercise helps regulate hormones, reduce inflammation, and maintain a healthy weight—all of which support your body in fighting off disease.

these six common foods can increase your cancer risks, says harvard doctor

US Sees Stone Fruit Season, What Are The Benefits Of This Fruit

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We have always bee advised to go with the flow and when it comes to diet, the flow means to opt for seasonal fruits. Now that summers are here too in the US, it is the season for stone fruits. The markets will be flooded with stone fruits, and they are of course worth indulging in. 

More than the taste, it also has health benefits. What are those?

As per the University of Florida's Horticultural Sciences Department, stone fruits are fruits with edible flesh on the outside and a stone, which is also known as the pit, which protects its seed from the inside. 

These fruits are called drupes and they include peaches, nectarines, cherries, plums, and apricots. As per a 2024 report from the US Department of Agriculture (USDA), the demand for these fruits have been on the rise globally and in the US. 

As per the US Department of Agriculture, cherries have a high calorie count. In one cup of cherries, around 154 grams, 97 of it makes up for calories. It has 25 grams carbs, 2 grams protein and no fat. 

It is also a good source of vitamin C, copper, magnesium, manganese, and vitamin B6 and potassium. 

It is also rich in antioxidants which helps in protecting your cells from damage caused by free radicals and also reduces inflammatory processes that can put your body at risk of chronic disease. 

As per a 2014 study published in journal PLOS One, titled Archaeological Evidence for Peach Cultivation and Domestication in China, peaches have been around the world from as far back as 6,000 BC.

The USDA notes that they are low in calorie, contains carbs, protein, no fat, and also has 19% of vitamin C from recommended daily intake (RDI), 11% RDI of vitamin A, and 10% RDI of potassium. 

Research, including a 2018 study published in journal Nutrients, titled Dietary Carotenoid Intakes and Prostate Cancer Risk, a 2015 study published in journal Food &amp; Nutrition Research, titled Carotenoids: Potential allies of cardiovascular health? and a 2014 study titled Dietary intake of carotenoids and risk of type 2 diabetes, provide that peach in fact can protect against heart disease, type 2 diabetes, and certain cancers, including the prostate cancer. 

The USDA notes that plums have calories, carbs, protein but no fat. It provides 20% RDI of vitamin C, 10% RDI of vitamin A, and 10% RDI of vitamin K. 

They are also high in anti-inflammatory antioxidants, including phenolic compounds, which protect your cells from being damaged by the free radicals. 

The USDA notes that they are rich in calories, contain carbs, protein, and a bit of fat. They are a high vitamin C source, providing 226% of the RDI. They also provide 7% RDI for folate and 10% for vitamin B6. 

The USDA notes that they contain calories, carbs, protein and no fat, providing 27% RDI for vitamin C, 64% for vitamin A, and 12% for potassium. 

<strong><em>Note: All these fruits also contain fiber between 2 to 3 grams. Before consuming any stone fruit, please consult your doctor to ensure you are not allergic to any of them and to better understand how can it help you.</em></strong>

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We have always bee advised to go with the flow and when it comes to diet, the flow means to opt for seasonal fruits. Now that summers are here too in the US, it is the season for stone fruits. The markets will be flooded with stone fruits, and they are of course worth indulging in. More than the taste, it also has health benefits. What are those?Stone Fruit - What Are Those?As per the University of Florida's Horticultural Sciences Department, stone fruits are fruits with edible flesh on the outside and a stone, which is also known as the pit, which protects its seed from the inside. These fruits are called drupes and they include peaches, nectarines, cherries, plums, and apricots. As per a 2024 report from the US Department of Agriculture (USDA), the demand for these fruits have been on the rise globally and in the US. What Are The Health Benefits?CherriesAs per the US Department of Agriculture, cherries have a high calorie count. In one cup of cherries, around 154 grams, 97 of it makes up for calories. It has 25 grams carbs, 2 grams protein and no fat. It is also a good source of vitamin C, copper, magnesium, manganese, and vitamin B6 and potassium. It is also rich in antioxidants which helps in protecting your cells from damage caused by free radicals and also reduces inflammatory processes that can put your body at risk of chronic disease. Peaches As per a 2014 study published in journal PLOS One, titled Archaeological Evidence for Peach Cultivation and Domestication in China, peaches have been around the world from as far back as 6,000 BC.The USDA notes that they are low in calorie, contains carbs, protein, no fat, and also has 19% of vitamin C from recommended daily intake (RDI), 11% RDI of vitamin A, and 10% RDI of potassium. Research, including a 2018 study published in journal Nutrients, titled Dietary Carotenoid Intakes and Prostate Cancer Risk, a 2015 study published in journal Food & Nutrition Research, titled Carotenoids: Potential allies of cardiovascular health? and a 2014 study titled Dietary intake of carotenoids and risk of type 2 diabetes, provide that peach in fact can protect against heart disease, type 2 diabetes, and certain cancers, including the prostate cancer. PlumsThe USDA notes that plums have calories, carbs, protein but no fat. It provides 20% RDI of vitamin C, 10% RDI of vitamin A, and 10% RDI of vitamin K. They are also high in anti-inflammatory antioxidants, including phenolic compounds, which protect your cells from being damaged by the free radicals. LycheeThe USDA notes that they are rich in calories, contain carbs, protein, and a bit of fat. They are a high vitamin C source, providing 226% of the RDI. They also provide 7% RDI for folate and 10% for vitamin B6. ApricotsThe USDA notes that they contain calories, carbs, protein and no fat, providing 27% RDI for vitamin C, 64% for vitamin A, and 12% for potassium. Note: All these fruits also contain fiber between 2 to 3 grams. Before consuming any stone fruit, please consult your doctor to ensure you are not allergic to any of them and to better understand how can it help you.

us sees stone fruit season, what are the benefits of this fruit

Can low calorie diet impact

A new study published in <em>BMJ <span rel="noindex">Nutrition</span> Prevention &amp; Health</em> has found that low-calorie or restrictive diets may be associated with a higher risk of depressive symptoms, particularly in men and people who are overweight or obese. The findings challenge previous research and highlight the potential <span>mental health</span> costs of calorie-cutting diets, especially when followed without proper nutritional guidance.

<h4>Healthy vs. Unhealthy Diets: What We Know</h4>

Traditionally, diets rich in whole foods—such as fruits, vegetables, whole grains, nuts, lean proteins, and fish—are linked to lower risks of depression. On the other hand, diets high in ultra-processed foods, refined sugars, saturated fats, and processed meats are associated with a greater risk of mental health issues. However, not all diets fit neatly into these categories, and many people follow restrictive eating plans for various health reasons. This new study set out to explore whether these restrictive diets themselves may be linked to depressive symptoms.

<h4>The Study: Diet Patterns and Depression Scores</h4>

Researchers analyzed data from 28,525 adults who participated in the US National Health and Nutrition Examination Survey (NHANES) between 2007 and 2018. Participants also completed the PHQ-9 questionnaire, a standard tool used to assess the severity of depressive symptoms.

About 8% of participants reported depressive symptoms. Diet types were grouped into four categories:

<ul><li>Calorie-restrictive diets</li><li>Nutrient-restrictive diets (low in fat, sugar, salt, fibre, or carbs)</li><li>Established diets (such as diabetic diets)</li><li>No specific diet</li></ul>

The majority—87%—were not following any specific diet. Only 8% reported being on a calorie-restrictive diet, and even fewer followed nutrient-restrictive (3%) or established (2%) dietary plans.

<h4>Key Findings: Dieting and Depressive Symptoms</h4>

The results showed that people on calorie-restrictive diets had slightly higher PHQ-9 depression scores than those not on a diet. The differences were more significant among overweight individuals and men.

Overweight individuals following calorie-restrictive diets had PHQ-9 scores 0.46 points higher.

Nutrient-restrictive diets led to a 0.61-point increase in depressive scores in the same group.

Men on nutrient-restrictive diets had higher cognitive-affective symptoms (thoughts and feelings linked to depression) compared to women.

All three diet types were associated with higher somatic symptoms (physical symptoms linked to emotional distress) in men.

<h4>Possible Explanations and Limitations</h4>

Researchers noted that participants might have inaccurately reported or classified their diets. Unlike clinical trials, real-life calorie-restricted diets often lack adequate nutrients, leading to deficiencies that could affect mental health.

The researchers suggest that poor nutrient intake, weight cycling, and physiological stress might contribute to the link between dieting and depression. They also highlight the role of nutrients like omega-3 fatty acids and vitamin B12 in supporting brain function—nutrients that may be lacking in restrictive diets.

While the effects seen in the study were modest, the findings add to growing concerns about the mental health impact of restrictive diets. Experts stress the need for well-designed studies that accurately assess diet and mental health links, particularly among vulnerable groups.

low calorie diet mental health

mental health

mental health diet

unhealthy diet

A new study published in BMJ Nutrition Prevention & Health has found that low-calorie or restrictive diets may be associated with a higher risk of depressive symptoms, particularly in men and people who are overweight or obese. The findings challenge previous research and highlight the potential mental health costs of calorie-cutting diets, especially when followed without proper nutritional guidance.Healthy vs. Unhealthy Diets: What We KnowTraditionally, diets rich in whole foods—such as fruits, vegetables, whole grains, nuts, lean proteins, and fish—are linked to lower risks of depression. On the other hand, diets high in ultra-processed foods, refined sugars, saturated fats, and processed meats are associated with a greater risk of mental health issues. However, not all diets fit neatly into these categories, and many people follow restrictive eating plans for various health reasons. This new study set out to explore whether these restrictive diets themselves may be linked to depressive symptoms.The Study: Diet Patterns and Depression ScoresResearchers analyzed data from 28,525 adults who participated in the US National Health and Nutrition Examination Survey (NHANES) between 2007 and 2018. Participants also completed the PHQ-9 questionnaire, a standard tool used to assess the severity of depressive symptoms.About 8% of participants reported depressive symptoms. Diet types were grouped into four categories:Calorie-restrictive dietsNutrient-restrictive diets (low in fat, sugar, salt, fibre, or carbs)Established diets (such as diabetic diets)No specific dietThe majority—87%—were not following any specific diet. Only 8% reported being on a calorie-restrictive diet, and even fewer followed nutrient-restrictive (3%) or established (2%) dietary plans.Key Findings: Dieting and Depressive SymptomsThe results showed that people on calorie-restrictive diets had slightly higher PHQ-9 depression scores than those not on a diet. The differences were more significant among overweight individuals and men.Overweight individuals following calorie-restrictive diets had PHQ-9 scores 0.46 points higher.Nutrient-restrictive diets led to a 0.61-point increase in depressive scores in the same group.Men on nutrient-restrictive diets had higher cognitive-affective symptoms (thoughts and feelings linked to depression) compared to women.All three diet types were associated with higher somatic symptoms (physical symptoms linked to emotional distress) in men.Possible Explanations and LimitationsResearchers noted that participants might have inaccurately reported or classified their diets. Unlike clinical trials, real-life calorie-restricted diets often lack adequate nutrients, leading to deficiencies that could affect mental health.The researchers suggest that poor nutrient intake, weight cycling, and physiological stress might contribute to the link between dieting and depression. They also highlight the role of nutrients like omega-3 fatty acids and vitamin B12 in supporting brain function—nutrients that may be lacking in restrictive diets.While the effects seen in the study were modest, the findings add to growing concerns about the mental health impact of restrictive diets. Experts stress the need for well-designed studies that accurately assess diet and mental health links, particularly among vulnerable groups.

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What Is The 'Meal Memory' Cell That Leads To Overeating?

Quick Stories

These Six Common Foods Can Increase Your Cancer Risks, Says Harvard Doctor

US Sees Stone Fruit Season: What Are The Benefits Of This Fruit?

Can Low Calorie Diet Impact Your Mental Health?

Health Conditions A-Z

These Six Common Foods Can Increase Your Cancer Risks, Says Harvard Doctor

Is It Just A Summer Cold Or The NB.1.8.1 Covid Variant? How To Tell When The Symptoms Are Nearly Identical

World’s First ‘Trojan Horse’ Blood Cancer Drug Rolled Out By NHS In England