Worrying about aging—especially health worries—was tied to faster biological aging in women.  

High ultra-processed food intake was linked to worse heart health and shorter life.  

Key takeaways: In a large long-term study, adults 75 and younger who consumed about 250–300 mg of caffeine per day (roughly 2–3 cups of coffee) had about a 35% lower risk of later-life cognitive loss compared with low or no caffeine drinkers. The benefit showed an apparent “sweet spot”: moderate coffee or tea intake was linked to protection, but higher amounts did not add extra benefit and may harm sleep and anxiety, which are important for brain health. Across nearly 40 additional studies, people who drank coffee or tea regularly showed a modest reduction in risk, reinforcing the idea that consistent, moderate caffeine intake may support healthier brain...

Scientists calmed overactive lysosomes, making old blood stem cells act young again.