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DEET has long been considered the gold standard for mosquito protection, but new laboratory research suggests mosquitoes may be able to learn to associate its smell with a food reward. Scientists found that yellow fever mosquitoes exposed to DEET while feeding on blood later showed attraction to the repellent’s odor, whereas untrained mosquitoes avoided it. The findings suggest that mosquitoes can learn from experience and may change their behavior over time. However, researchers stress that DEET remains highly effective because it also repels mosquitoes when they land on the skin. While the study offers new insights into mosquito behavior, experts continue to recommend DEET as one of the best defenses against mosquito bites.

A new study from Johns Hopkins researchers warns that combining cannabis edibles with alcohol can significantly increase driving impairment compared to using either substance alone. Participants who consumed both showed greater difficulties with driving-related skills, including reaction time, coordination, and decision-making. Researchers also found that standard field sobriety tests often failed to detect impairment caused by cannabis edibles, raising concerns about road safety and law enforcement's ability to identify affected drivers. The findings highlight the unique risks associated with mixing these substances and underscore the importance of avoiding driving after consuming alcohol, cannabis products, or both.

New research suggests that caffeine may do more than just help you stay awake—it could also reverse certain memory problems caused by sleep deprivation. Scientists found that lack of sleep disrupts a specific brain circuit involved in social memory, making it harder to recognize familiar individuals. In laboratory studies, caffeine restored communication between neurons within this pathway and successfully reversed the memory deficits linked to lost sleep. Remarkably, the effect was highly targeted, helping the impaired brain circuit recover without overstimulating normal brain activity. These findings offer new insights into how sleep loss affects the brain and how caffeine may help counter some of its cognitive effects.

A new clinical study suggests that a specially formulated tomato-soy juice may help reduce inflammation associated with obesity. The drink is enriched with natural plant compounds known for their potential health benefits. In the study, healthy adults with obesity consumed the juice daily for four weeks and experienced significant reductions in several inflammatory proteins found in their blood. Interestingly, a standard tomato juice used as a control did not produce the same results. Researchers believe the unique combination of bioactive compounds in the tomato-soy blend may play a key role in these benefits, highlighting its potential as a simple dietary approach to support metabolic health.

Biological age tests are becoming increasingly popular, promising to reveal how well your body is aging compared to your actual age. These tests rely on epigenetic clocks, which analyze chemical changes in DNA linked to aging. However, scientists caution that while these tools are valuable for research, they are not reliable indicators of an individual’s health. Results can vary depending on factors such as diet, illness, stress, time of day, and even the type of sample used. Researchers emphasize that epigenetic clocks are best suited for studying aging in large populations, not for making personal health decisions or predicting an individual’s future health.

Constant tiredness may not always be caused by stress, lack of sleep, or overwork. Researchers in Japan have found that deficiencies in important nutrients — particularly vitamin B12 and folate — could quietly contribute to persistent fatigue, low energy, and reduced motivation, even in otherwise healthy individuals. These vitamins play essential roles in brain function, red blood cell production, and energy metabolism. When levels drop too low, the body may struggle to function efficiently, leading to feelings of exhaustion and mental sluggishness. The findings highlight the importance of proper nutrition and regular health checkups in maintaining overall energy and well-being.

Scientists at Stanford University have discovered a possible hidden cause behind brain aging and memory decline. Using the short-lived turquoise killifish as a model, researchers found that ribosomes — the tiny cellular machines responsible for building proteins — begin to stall and collide as organisms age. These “protein traffic jams” disrupt the normal production of proteins, leading to faulty protein buildup and harmful clumps often linked to neurodegenerative diseases such as Alzheimer’s. The findings offer fresh insight into how aging affects brain cells and could help researchers develop future treatments aimed at slowing memory loss and age-related brain disorders.

A major new study in the southeastern United States has uncovered a growing health crisis among wild snakes. Researchers found that many snakes are battling multiple infections at the same time, including ophidiomycosis - also known as snake fungal disease - which is emerging as a serious threat to snake populations. Pygmy rattlesnakes were found to be particularly vulnerable, often carrying both the deadly fungus and a parasitic “snake lungworm” that attacks the respiratory system. Scientists warn that these combined infections could severely impact wild snake populations and disrupt fragile ecosystems where snakes play a crucial ecological role.

Researchers in Japan have created advanced vitamin K-based compounds that may help the brain heal itself by regenerating lost neurons. The new compounds, developed by combining vitamin K with vitamin A-related components, were found to be nearly three times more effective at converting neural stem cells into neurons compared to natural vitamin K alone. This discovery could open new possibilities for treating neurodegenerative diseases such as Alzheimer’s and Parkinson’s, where nerve cell loss is a major challenge. While the findings are still in early stages, scientists believe this breakthrough may pave the way for future brain-repair therapies and improved neurological health.

Vitamin B12 is essential for red blood cell production, nerve health, and DNA repair, making it one of the body’s most important nutrients. However, new research suggests the relationship between B12 and cancer may be more complex than previously thought. While low B12 levels can damage DNA and potentially increase cancer risk, scientists are now investigating whether excessively high levels - especially from long-term high-dose supplements - could also be linked to certain cancers or poorer outcomes in cancer patients. Experts stress that balance is key, and supplementation should be based on medical advice rather than the assumption that “more is always better.”