Losing weight while you are sleeping is like a dream for many of us. As we are living in a fast-paced world today, finding time to do things we like, hobbies and even exercising can be difficult for us. And weight loss is a journey that requires time, patience and a lot of grit. And unlike many other things, there are not a lot of shortcuts you can make with weight loss, but we can maximize on things that we know can benefit it! Have you ever noticed how you see a lower number on the weight scale in the morning? This is mostly because we lose water from our bodies overnight. We lose water through normal body functions like breathing, sweating, and even when we go to the bathroom. This is called insensible water loss. While our bodies do burn some calories while we sleep, the main reason for this morning weight difference is water loss, not a significant loss of body fat. So, while you might be slightly lighter, it's not the same as losing fat through exercise or diet.

Does Sleeping Burn Fat?

While sleeping is essential for overall health and plays a supporting role in weight management, it doesn't directly burn a significant amount of fat. Unlike what many people believe, our bodies use energy even when we’re resting. While we may not be conscious, our body is still carrying out necessary functions to keep us alive! But the calories burnt during sleep are relatively low. However, getting enough sleep is important because it affects other things that impact weight loss, like our hormones and metabolism. Think of your sleep as setting the stage for successful weight management, rather than being the main act itself.

The primary way we "lose weight" during sleep is through insensible water loss. The American Physiological society tells us the insensible water loss means we lose water without even realizing it. We breathe out water vapor, we sweat a little even if we don't feel it, and our bodies eliminate water through other normal processes. Experts estimate that breathing and sweating alone are one of the biggest reasons for the weight difference we see in the morning. The exact amount of water lost varies from person to person, depending on factors like their metabolism and the room temperature of where they are sleeping.

How Does Sleep Affect Our Weight Loss?

Sleep is an important tool especially when it comes to weight loss and body health. According to the Nutrient Journal’s 2022 study adults who sleep less than 7 hours a night are more likely to be obese. Not just that, but lack of sleep also affects your cognitive health, people who do not get enough sleep have trouble remembering things and have terrible recall abilities. It also increases the risk of serious health problems like heart disease, diabetes, and even early death.

Sleeping 6 hours or less a night has been linked to a higher BMI. Like it was mentioned above, lack of sleep can increase your chances of being obese, and you may be surprised to know that even just a few nights of poor sleep can lead to short-term weight gain. Studies show that both adults and kids who don't sleep enough are more likely to be obese and gain more weight in the future. Eating and sleeping at odd times, like when working night shifts, also increases the risk of obesity and other health problems because it messes up our body's natural clock.

Creating Healthy Habits for Weight Management

While you can read as many studies on what affects weight loss and how to make it happen faster, you should focus on eating healthier and sleeping better. Fast and furious does not work for your body! Making changes to your lifestyle can be challenging, but it's important to start somewhere. Some helpful strategies are that you can start writing down your weight loss goals in a "contract" to stay motivated, keeping a food diary to track what you eat, and regularly monitoring your progress. Remember that progress isn't just about the number on the scale, it can also be about other health improvements like increased energy or better sleep quality.

Search engines like Google and Bing, and AI chatbots like ChatGPT and GPT-4, are now major sources of health information. But how reliable are they?

A new research published in the NPJ Digital Medicine tested four major search engines and seven different large AI models, including leading programs like ChatGPT and GPT-4, by asking them 150 medical questions. Their study looked at how accurate the answers were, how much the results changed based on how the question was asked, and whether giving the AI access to search results helped.

Which Gave Better Answers: AI or Search Engines?

While AI Chatbots, with 80% accuracy, generally outperformed Search Engines, with 50-70% accuracy, on direct health questions, the study found that AI chatbots are good, but their mistakes are worrying.

Confidence in Errors

The biggest and most dangerous problem was that the AI sometimes gave confidently wrong answers that directly disagreed with established medical facts. This is highly risky in a health setting.

Overall Accuracy

The AI chatbots generally did better than search engines, correctly answering about 80% of the questions. The best performers were typically GPT-4, ChatGPT, Llama3, and MedLlama3.

Precision Problem

Search engines like Google usually return answers that are correct when they directly address the question, but they often clutter the results with information that is incomplete or off-topic. They struggled with giving a straight "yes" or "no" answer.

User Habits

The study simulated a "lazy" user, who just trusts the first answer, and a "diligent" user, who checks three sources. Surprisingly, the "lazy" users were sometimes just as accurate as the diligent ones, suggesting that top-ranked results are often good, but this is a risk if a highly ranked answer happens to be wrong.

Bing was the best among search engines, but it wasn't significantly better than Google, Yahoo!, or DuckDuckGo.

How You Ask The Question Matters

The AI's accuracy was highly sensitive to how the question was phrased. Using an "expert" prompt like asking the AI to cite reputable medical sources generally led to better, more medically sound answers, even if they were sometimes less direct.

Giving the AI the top search results before it answered (retrieval augmentation) usually improved performance, especially for smaller AI models. However, this didn't always help; if the search results given to the AI were irrelevant or low-quality, the AI's answer could actually get worse. More information isn't always better.

Things to Keep In Mind

Some points noted by the researchers was,

• Questions about COVID-19 were easier for both AI and search engines, likely because of the huge amount of data available about the pandemic.

• While AI is powerful, its tendency to be swayed by how you word the question and its confident errors mean we need to be very cautious about using it for medical advice.

• The overall conclusion is that AI models are promising for health information, but they are not yet fully reliable on their own. Combining them with high-quality search results is likely the best way forward, but only if the search results fed to the AI are trustworthy.

A recent scientific study found an exciting new way to check if someone is likely to get Alzheimer's disease due to their genetics. Instead of current medical tests, which are often costly, complex, and invasive, this new method uses simple eye-tracking technology. This means diagnosing the risk could become much easier for patients and more affordable for healthcare systems.

As you may know, there is currently no cure for Alzheimer's disease. This is a neurodegenerative disease that can affect a person’s memory, skills, as well as behavior. The best way to deal with this disease is by diagnosing it early, so that doctors can provide medicine and treatment options to delay the onset and manage the symptoms. However, it is not easy to spot the symptoms, so how can one know for certain whether they have Alzheimer's disease or not?

How Can Eye Trackers Detect Alzheimer’s Disease

This research, which involved scientists from the University of Strathclyde, looked closely at how well this new technique works. The technology is a specific system called ViewMind Atlas. It works by monitoring a person's tiny, subtle eye movements. Then, Artificial Intelligence (AI) software analyzes these movements.

Since the eyes are closely linked to the brain, the way they move can tell doctors about the brain's health and function. The most important part is that this system can successfully identify the genetic risk in people years before they start showing any actual memory loss or other Alzheimer’s symptoms.

How Accurate Is This Eye Tracking Test?

To test the system, the researchers studied a group of people from extended families in Colombia who have a known genetic mutation that causes Alzheimer’s. The results were incredibly promising:

For the family members who were already showing symptoms of the disease, the ViewMind Atlas test was 100% accurate in identifying them.

More remarkably, for those who carried the gene but didn't have any symptoms yet (asymptomatic), the test was 96% accurate at correctly identifying their risk. The AI model essentially learned to look at the patterns of eye movement and use them to tell apart the people who had or were likely to get Alzheimer's from those who weren't.

Can This Help Improve Early Diagnosis Rate?

The research team found this eye-tracking test detects the disease earlier than standard cognitive tests, which often fail to flag a problem until it is well underway. The lead scientist, Professor Mario Parra Rodriguez, explained why this is such a big deal. He pointed out that today's common tests are "expensive and invasive," often requiring hospital procedures.

The ViewMind Atlas system, however, helps doctors predict Alzheimer’s risk years in advance. This is key for doctors, who often struggle to figure out if a patient’s mild forgetfulness is just a normal part of getting older or a serious risk of dementia. This new tool could help them act quickly to treat or manage the risk instead of having to wait for the disease to fully develop.

A resident in the suburbs of New York City has tested positive for chikungunya, which is a mosquito-borne virus more commonly seen in South America and not reported on the U.S. mainland in over a decade. Health officials confirmed that the virus, which often causes fever and joint pain, was identified in a Long Island patient who began showing symptoms in August after traveling outside the local area, though not internationally.

The infection likely came from a mosquito bite, but it is unclear exactly where. So far, the virus has not been detected in local mosquito populations and cannot spread directly from person to person. As the virus reaches New York, it’s important to understand who is more vulnerable to chikungunya.

Who Is More At Risk For Chikungunya?

According to the World Health Organization, certain groups are more susceptible to severe chikungunya. Older adults, newborns, pregnant women, and individuals with pre-existing conditions such as high blood pressure, diabetes, or heart disease are at higher risk of complications or slower recovery. While chikungunya rarely leads to death, it can produce sudden high fever, headaches, fatigue, rash, nausea, and red eyes.

Symptoms typically appear 2 to 7 days after being bitten by an infected mosquito. Most people recover within a couple of weeks, but some may experience lingering joint and muscle pain for months or even years after infection.

Where Is Chikungunya Found?

Originally limited to Africa and Asia, chikungunya has now spread rapidly since 2004. Today, more than one-third of the global population lives in areas where the virus can be transmitted. These regions include parts of the Americas, Africa, Asia, Europe, and islands in the Caribbean as well as the Indian and Pacific Oceans, according to Mayo Clinic.

Should You Be Worried About The Chikungunya Spread In The US?

Most people recover within 1 to 2 weeks without additional symptoms. However, some develop chronic chikungunya arthritis, with joint and muscle pain lasting months or years, affecting at least 40% of those infected.

Death from chikungunya is rare, but the virus can cause serious issues in vulnerable groups, including older adults, people with chronic conditions such as diabetes or high blood pressure, young children, and pregnant individuals who could transmit the virus to their babies. Complications may involve the eyes, heart, or nervous system. Fortunately, a previous infection usually provides protection against future infections.

Chikungunya: What’s Happening in the United States?

The New York case marks the first locally acquired instance in the U.S. since 2015, meaning the patient contracted the virus without traveling elsewhere. Ten years ago, a single case was reported in Texas, according to the Centers for Disease Control and Prevention (CDC), and two cases occurred in U.S. territories in 2019.

This is also the first locally acquired case ever detected in New York, said the state Health Department. Health officials explained that transmission occurs when a mosquito bites an infected traveler, becomes infected, and then bites another person. The mosquito species known to carry chikungunya, Aedes albopictus, exists in parts of downstate New York. People are advised to prevent bites by wearing long sleeves and removing standing water from items like flowerpots. However, cooler nighttime temperatures in New York currently make the risk of transmission “very low,” said State Health Commissioner James McDonald.

Although locally acquired cases have been almost nonexistent in recent years, the CDC has recorded several travel-related infections in the U.S., including 199 cases in 2024 and 152 in 2023.