Immune cells deliver packages of telomeres to T cells, helping them retain their virus-fighting function over time, research suggests.

Researchers caution that it’s too soon to recommend supplements based on the results of a new study.

Researchers say they've figured out how some reproductive ants live up to 30 years—far longer than workers.

The Middlebury College neuroscientist explores enzymes that affect brain cell development and neurodegeneration.

Research traces the evolution of a gene variant that reduces the risk of Alzheimer’s disease, finding that it originally evolved in response to infectious bacteria.

The cells’ mitochondria skip a key metabolic reaction that takes place in other cells in the body, a study finds.

In a citizen science project, thousands of pet dogs are helping scientists to understand what happens to memory and cognition in old age.

Two studies show negligible rates of aging in some types of turtles and other cold-blooded creatures, but that doesn’t mean they’re immortal.

Health data from 5,744 adults over the age of 50 reveals an association between stressors such as discrimination and a relatively small proportion of younger infection-fighting immune cells.

Microbes in the gut influence the death of support cells in the brain by producing isoamylamine, a study suggests.

Researchers report molecular evidence of traumatic brain injury in headbutting animals, but other experts aren’t convinced.

Increasing mitochondrial activity in worms by engineering a light-activated proton pump into the organelle’s membrane extends the animals’ lifespan without evidence of health decline, according to a preprint.

The Rockefeller University geneticist is tracing the full lifespan of individual cells to better understand how and why humans age.