As we get older, our genetics play a lesser role in how our genes function. Instead, new research shows that how our genes work as we get older is more affected by our decisions.

Vitamin C may be able to shorten the length of cold symptoms and possibly prevent infections in higher-risk populations—vitamin C supplements tend to be poorly absorbed, especially in higher doses. 

Metabolic disturbance plays a role in brain aging, given the high metabolic demand of neurons and age-related reduction in NAD+. Here, we summarize what we currently know about NAD+ precursors and brain aging.

Delaying meals by four hours alters appetite, hunger, caloric burn, and fat tissue activity, suggesting that eating earlier may be a simple intervention to support healthier body weights in the general population.