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A new study suggests that not all sugars affect your appetite in the same way. Researchers found that while glucose strongly reduced the activity of hunger-promoting brain cells in mice, fructose had a much weaker effect, making it less effective at signaling fullness. Even more surprising, high-fructose corn syrup triggered a stronger reward response and was preferred by the animals. The findings indicate that the type of sugar you consume—not just the number of calories—may influence hunger, cravings, and food choices. Although the research was conducted in mice, it offers valuable insights into how different sugars could affect appetite and eating behavior in humans.

Experiencing nausea during or after exercise is more common than many people realize. Experts say it often happens when blood flow is redirected away from the digestive system to support working muscles, making the stomach more sensitive. Other common triggers include dehydration, exercising too soon after a large meal, low blood sugar from working out on an empty stomach, and high-intensity training sessions. Fortunately, simple adjustments such as staying hydrated, eating a light carbohydrate-rich snack before exercise, and gradually increasing workout intensity can help prevent symptoms. However, persistent nausea or symptoms accompanied by chest pain, fainting, or severe breathlessness should be evaluated by a healthcare professional.

Reaching for an acidity tablet after a heavy meal may seem harmless, but doctors warn that relying on these medications daily could mask a more serious health problem. While antacids and proton pump inhibitors (PPIs) are effective at reducing stomach acid and relieving heartburn, long-term, unsupervised use has been linked to nutrient deficiencies, digestive infections, and reduced calcium absorption. More importantly, persistent acidity may be a symptom of underlying conditions such as GERD, ulcers, H. pylori infection, hiatal hernia, or even Barrett’s oesophagus. Experts say frequent heartburn should not be ignored. Instead of repeatedly treating symptoms, identifying and addressing the root cause is key to protecting long-term digestive health.

When pain strikes, choosing between ice and heat can make a big difference in recovery. According to medical experts, ice is generally best for new injuries such as sprains, strains, bruises, and sports injuries. Cold therapy helps reduce swelling, inflammation, and pain by constricting blood vessels. Heat, on the other hand, is more effective for chronic aches, muscle tightness, joint stiffness, and conditions like back pain or osteoarthritis. It works by increasing blood flow and relaxing muscles. A simple rule to remember: use ice for fresh, swollen injuries and heat for ongoing stiffness and soreness. Using the right therapy at the right time can speed healing and improve comfort.

Omega-3 supplements are often promoted as a simple way to improve memory and protect brain health, but new research suggests the benefits may be overstated. Large clinical trials and systematic reviews have found little evidence that omega-3 supplements improve cognitive performance, slow memory decline, or prevent dementia in most people. While omega-3 fatty acids remain essential nutrients that support normal brain function, experts say taking supplements is not a shortcut to better cognition. Instead, long-term brain health appears to depend more on a combination of healthy habits, including a balanced diet, regular exercise, quality sleep, and managing cardiovascular risk factors. When it comes to memory, there may be no magic pill after all.

As temperatures soar, doctors are warning that dehydration can pose a serious risk for people living with sickle cell disease (SCD). Unlike healthy red blood cells, sickle-shaped cells can become rigid and block blood vessels, causing painful crises and other complications. During hot weather, excessive sweating and inadequate fluid intake can make blood more concentrated, increasing the likelihood of these blockages. Experts say dehydration may trigger severe pain episodes, acute chest syndrome, kidney complications, and extreme fatigue. Staying well-hydrated, avoiding prolonged heat exposure, and recognizing early warning signs such as dizziness, headaches, or increasing pain can help prevent serious health emergencies during the summer months.

A gastroenterologist-trained study has highlighted eight popular foods and drinks that may negatively affect gut health when consumed regularly. Items such as boba tea, sweetened oatmeal packets, energy drinks, flavored coffee creamers, fast-food milkshakes, high-sodium canned soups, ultra-processed protein bars, and sweetened rice cakes were identified as potential contributors to digestive issues. Many of these products contain high amounts of added sugars, artificial additives, emulsifiers, or refined ingredients that may disrupt the balance of beneficial gut bacteria. While occasional consumption is unlikely to cause harm, making these highly processed foods a daily habit could increase bloating, digestive discomfort, and metabolic problems over time.

Researchers at the Baylor College of Medicine have identified a potential new strategy for fighting neurodegenerative diseases such as Alzheimer's and Parkinson's. The study found that tubulin, a protein responsible for building the cell’s internal transport system, can help prevent harmful protein clumps from forming inside brain cells. Instead of allowing Tau and alpha-synuclein proteins to gather into toxic aggregates linked to disease, tubulin appears to redirect them toward normal cellular functions. This discovery offers fresh insight into how brain cells naturally protect themselves and could pave the way for new treatments aimed at slowing or preventing the progression of devastating neurological disorders.

A major scientific review has found growing evidence that nicotine-containing e-cigarettes may increase the risk of lung and oral cancers. Researchers examined data from human studies, laboratory experiments, and animal research, concluding that vaping is unlikely to be as harmless as many people once believed. The review identified biological changes linked to cancer development, including damage to cells and tissues exposed to vape aerosols. While vaping is often promoted as a safer alternative to traditional smoking, experts warn that its long-term health effects are becoming increasingly clear. The findings highlight the need for greater awareness about the potential risks associated with regular e-cigarette use.

Scientists have uncovered a fascinating longevity secret in Heliconius butterflies, which can live several times longer than their closely related counterparts. Even more remarkably, some of these butterflies show little evidence of physical decline as they age, a phenomenon rarely seen in the animal kingdom. Researchers believe their unique habit of feeding on pollen, a rich source of nutrients and amino acids, may contribute to their extended lifespan. However, the study suggests that deeper evolutionary adaptations are also at work, helping these insects maintain their health over time. Understanding these mechanisms could provide valuable insights into aging, longevity, and healthy lifespan in other species, including humans.