The cells that experienced the biggest changes were the ones in the hypothalamus, the part of the brain that is linked to food intake, energy balance and metabolism, the researchers noted.

This suggests that this area is a "hotspot for aging," Zeng noted, and that there could be a connection between diet, lifestyle factors, brain aging and risk of age-related cognitive disorders.

https://www.foxnews.com/health/aging-hotspot-found-brain-researchers-say-major-changes