Tag

Aging

Explainer

HIIT cut fat and held muscle in older adults, but the edge was small

In a 6-month trial of more than 120 healthy older adults, high-intensity interval training reduced fat while holding onto muscle, unlike moderate exercise, which shaved a little. The authors say the differences between intensities were small.

Jul 17, 2026

Explainer

Semaglutide slowed measures of biological aging in a small trial

Researchers reanalyzed a 32-week trial of semaglutide in 84 adults and found the drug slowed several DNA-based clocks of biological aging. The aging analysis was exploratory, and the group studied was specific.

Jul 17, 2026

News

Higher blood vitamin C is linked to more gray matter in older adults

In 2,044 older adults in Japan, those with lower vitamin C in their blood tended to have less gray matter and weaker connections in a key brain network. It is a snapshot, so it cannot show that vitamin C protects the brain.

Jul 17, 2026