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Imagine sitting across from your lover, with your heart pounding or skipping a beat. An intoxicating sensation that many have attributed to love. But what if chocolate and not romance was the true culprit behind that fluttering heartbeat? Science reveals that chocolate, particularly dark chocolate, has a very interesting impact on our heart health and emotional well-being, sometimes even causing physical sensations similar to love.
Heart palpitations—the feeling that your heart skips or races—can be startling, even when harmless. While these sensations can be triggered by stress, caffeine, or even hormonal changes, chocolate also plays a role. Rich in unique compounds, chocolate can stimulate the heart, creating sensations that mimic the excitement of love.
Chocolate is derived from the Theobroma cacao tree, whose name aptly translates to "food of the gods." Its beans are rich in bioactive compounds, including caffeine, theobromine, and phenylethylamine, which form the basis of its heart-affecting properties.
- Caffeine: Present in varying amounts in chocolate, caffeine acts on the heart by inhibiting some chemicals that trigger muscle relaxation. This results in stronger contractions and a faster rate, which is like the excitement of love-making.
- Theobromine: A chemical present only in chocolate, theobromine can stimulate the central nervous system and cause minor elevations in heart rate, which can contribute to palpitations in sensitive people.
- Phenylethylamine Chemically similar to amphetamines, this compound is associated with feelings of love and euphoria.
Dark chocolate stands out as a healthier option compared to its milk and white counterparts. It contains higher concentrations of cocoa, amplifying its health benefits. Dark chocolate is rich in antioxidants that improve arterial blood flow, reduce clot risks, and decrease LDL cholesterol. These would contribute to cardiovascular health and might help prevent heart disease. The magnesium and tryptophan in dark chocolate improve mood by raising serotonin levels, mimicking the feel-good hormones experienced during love. On the downside, dark chocolate's caffeine is also one that can make heart palpitations occur, especially for those who react sensitively to stimulants.
Also Read: Are You Sleeping In The Best Position For Your Heart's Health?
Among chocolate's famous compounds is one known as a stimulant-certainly quite popular in coffee, tea, soda, energy drinks, and of course, chocolate itself. Though moderate quantities are associated with positive health factors, excessive dosing causes palpitations, anxiety, and erratic rhythms.
A 2016 study concluded that there is no concrete evidence associated with moderate caffeine consumption toward the cause of heart palpitations; in fact, in some instances, it may even support heart health. Another study conducted in 2018 found no robust relationship between caffeine and heart palpitations. Although this is the case, a 2004 study concluded that chocolate was consumed in relation to palpitations in patients diagnosed with such episodes.
Chocolate is a safe indulgence for most people, but those with heart conditions or who are sensitive to caffeine should be cautious. A small ounce of dark chocolate can contain as much caffeine as a small cup of coffee, enough to cause palpitations in susceptible individuals.
The Cleveland Clinic recommends individuals with heart issues or poor health limit their caffeine intake, including from chocolate, to avoid exacerbating symptoms.
While chocolate might take the spotlight, it’s not the only factor causing your heart to flutter.
Medications: Certain asthma drugs, decongestants, and heart medications can stimulate abnormal rhythms.
Most palpitations are benign, but persistent or painful episodes require medical attention.
Here are some tips on how to manage and prevent them:
Chocolate, with its rich history and complex chemistry, offers a sensory experience that rivals the thrill of love. Its ability to stimulate the heart and lift your spirits makes it a beloved treat worldwide. But knowing its effects on heart health ensures you can indulge responsibly.
Caffeine and Arrhythmias: Time to Grind the Data. JACC: Clinical Electrophysiology. 2018
Consumption of Caffeinated Products and Cardiac Ectopy. Journal of the American Heart Association. 2024
Caffeinated energy drink consumption among adolescents and potential health consequences associated with their use: a significant public health hazard. Acta Biomed. 2017
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Following the MIND diet may help slow brain aging by more than two years, according to new research.
The MIND diet is a combination of the Mediterranean diet and the DASH diet, both known for their health benefits, but it is specially designed to protect brain function. In a long-term study of over 1,600 adults, researchers found that people whose eating habits closely followed the MIND diet showed less brain shrinkage over time, especially in gray matter, which is crucial for memory, thinking, and decision-making. They also had fewer signs of brain deterioration, such as enlarged ventricles.
On average, those who stuck most closely to the diet had brain changes equivalent to being about 2.5 years younger compared to others.
Brain aging is the natural, progressive process of structural and chemical changes in the brain over time, resulting in typical age-related cognitive decline, such as slower processing speeds, reduced brain volume (atrophy) and memory lapses.
"MIND-recommended foods rich in antioxidants, such as berries, and high-quality protein sources like poultry may reduce oxidative stress and mitigate neuronal damage," write the researchers in their published paper.
This combination diet focuses on foods rich in antioxidants and nutrients that protect brain cells and may help reduce oxidative stress and inflammation, both of which contribute to brain aging. At the same time, it limits unhealthy foods like fried items, red meat and processed foods, which can damage blood vessels and brain tissue.
However, the study does not explain how the MIND diet directly affects the brain and factors like lifestyle, sleep, or genetics may also play a role, according to the scientists.
READ MORE: High Brain Age May Increase Dementia Risk, Study Shows
The Mediterranean diet is a plant-focused way of eating, inspired by the traditional diets of Mediterranean countries. It emphasizes fresh fruits and vegetables, whole grains, legumes, nuts, seeds, and olive oil as the main source of fat. The diet includes moderate amounts of fish and dairy while limiting red meat and sweets.
Beyond what’s on the plate, it also encourages lifestyle habits such as regular physical activity and sharing meals with others, which supports social connections and helps reduce stress.
Incorporating the Mediterranean diet into your daily routine doesn’t have to be complicated. Start by adding more fresh fruits and vegetables to every meal, swapping refined grains for whole grains, and including nuts, seeds, and legumes as snacks or salad toppings. Use olive oil as your main cooking fat instead of butter or processed oils, and aim to include fish or seafood a few times a week.
Red meat and sweets can be enjoyed occasionally, rather than daily. Beyond food, try to stay active through walking, yoga, or other forms of exercise, and make mealtimes a social experience whenever possible, sharing meals with family or friends to combine nutrition with connection and reduced stress.
A long-term study conducted by the Nurses’ Health Study (NHS), which followed female nurses from 1989 to 2023, found that people who closely followed the Mediterranean diet over the years had a significantly lower risk of dementia and better cognitive function.
This protective effect was particularly evident in individuals with varying genetic risk for Alzheimer’s, including carriers of the APOE-e4 gene. Similar findings were also observed in the male Health Professionals Study.
While the Mediterranean diet as a whole was linked to reduced dementia risk, researchers highlighted a few key components that seem to have the most impact: fresh fruits, nuts, and sources of monounsaturated fats, such as olive oil and avocados.
The study indicates that sticking to the Mediterranean diet over the long term may substantially lower the risk of Alzheimer’s, even for those with a genetic predisposition. This diet is packed with fiber, antioxidants, healthy fats, and lean proteins, found in foods like fruits, vegetables, nuts, seeds, legumes, whole grains, seafood, and olive oil. Incorporating more of these foods into your daily meals can be a simple way to support brain health.
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While many studies suggest that caffeine may be dangerous for your physical health, a new Neuropsychopharmacology study suggests that it may protect against, and even reverse, memory problems caused by lack of sleep.
In this animal study, scientists at the National University of Singapore have found that sleep-deprived mice struggle to recognize other mice however, mice that were given caffeine for a week before being being sleep-deprived performed much better on tests and did not show the same memory loss.
Additionally, when caffeine was directly applied to brain tissue from sleep-deprived mice, it improved communication between brain cells in this region -- suggesting that caffeine doesn’t just mask tiredness but may also help repair disrupted brain activity.
NUS physiologist Lik-Wei Wong explained: "Sleep deprivation does not just make you tired. It selectively disrupts important memory circuits.
"We found that caffeine can reverse these disruptions at both the molecular and behavioral levels. Its ability to do so suggests that caffeine's benefits may extend beyond simply helping us stay awake."
"Our findings position the CA2 region as a critical hub linking sleep and social memory. This research enhances our understanding towards the biological mechanisms underlying sleep-related cognitive decline. This could inform future approaches to preserving cognitive performance," NSU neuroscientist Sreedharan Sajikumar added.
Based on these results, the study concluded that sleep deprivation increases signaling linked to adenosine, a chemical that promotes sleep but can also weaken memory circuits. But with moderate amounts of intake, caffeine appears to block this effect and help the brain maintain normal function
While the discovery offers a clearer understanding of how sleep, memory and caffeine are connected, the findings are based on mice and more research is needed to confirm if the same benefits apply to humans.
Due to how much caffeine can actually affect one’s body, experts recommend 400 milligrams only per day. That is about four cups, it is also better to consult a doctor about this as caffeine sensitivity is different for people. Some people are more sensitive to caffeine than others.
How you react depends on your health, what medicines you take, and how fast your body processes things. Too much caffeine can cause problems, so it's important to pay attention to how you feel and not go overboard. Here is what happens to your body when you drink too much caffeine daily.
Caffeine can slow down how your skin makes collagen, which keeps it tight and smooth. Less collagen means more wrinkles, making you look older faster. Cutting back on coffee might help your skin stay younger-looking.
Too much caffeine can make your blood pressure go up. This can be bad for your heart and increase your risk of problems like heart attacks and strokes. It's not clear exactly why, but it's a risk.
Caffeine can make you feel jittery and anxious. It can also trigger your body's "fight or flight" response, which is like a panic reaction. If you already feel anxious, caffeine can make it much worse.
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Actress Saba Azad has been hospitalized after being infected with the parasite Cyclospora cayetanensis. The infection has led to significant weight loss of around 4 kg, leaving her extremely weak and barely able to walk.
Calling the bug “nasty piece,” Azad, in a post on social media platform Instagram, rued that she got the infection even though she always ate home-cooked food and carried her own water bottle for drinking water.
The actress also shared a photo of herself lying in a large hospital bed, looking visibly frail. She described the ordeal as the “worst 14 days” of her life.
“Worst 14 days of my life. Cyclospora cayetanensis...you nasty piece of work!! For someone who only ever eats home food, carries her water bottle everywhere, this stomach bug came outa nowhere, that too at the busiest time of the year for me,” she wrote on Instagram.
She also shared how the illness drastically affected her physical strength and her weight.
“I have lost 4 kgs that I didn’t have spare in two weeks, and I can barely walk,” Azad said.
“One day I'm training twice a day, doing pull-ups, lifting heavy, and the next I'm half my size, without strength to lift a goddamn toothpick, let alone weights,” she added.
The actress and musician advised people to wash their salad leaves and vegetables properly.
"For the love of your gut, wash your salad leaves and veg like your life depends on it - cause sometimes it really does!!”
The 41-year-old noted that “Baking soda + veggie wash” is her new way to wash them.
She also mentioned that her boyfriend, Hrithik Roshan, has been a constant source of support during this time.
Cyclospora cayetanensis is a parasite that leads to the illness Cyclosporiasis -- a form of food poisoning.
One can get a Cyclospora infection from contaminated food or water. It causes watery diarrhea and other intestinal symptoms.
A Cyclospora infection can be mild or very serious, and may last weeks or months. It is typically treated with antibiotics.
People with weakened immune systems, such as those with HIV/AIDS or cancer, are more at risk of severe disease.
Symptoms of cyclosporiasis usually start within a week of exposure (eating or drinking contaminated food or water) and include:
While it is not yet fully understood how Cyclospora gets into food and water, individuals can prevent cyclosporiasis by not consuming food or water that may be contaminated with feces.
The US CDC advises people to take measures to prevent the foodborne illness such as:
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