In a study of Chinese adults, psychological factors like feeling unhappy or being lonely added up to 1.65 years to biological age—a marker of internal aging.

SuperAgers who are age 80-plus have larger neurons in an area of the brain responsible for memory—the entorhinal cortex—compared to peers and even people 20-30 years younger.

A review of 104 studies found positive links between cold water swimming and activation of brown adipose tissue (BAT), a healthy type of fat that burns calories.

Weekly treatments with an epigenetic activator called TTK21 aids the regrowth of sensory and motor neurons in the spinal cord when given to mice 12 weeks after severe spinal injury.