People who live past 110 have an unusual abundance of killer immune cells

People who reach 110 and beyond appear to have unusually large numbers of rare immune cells capable of killing abnormal cells. These CD4 cytotoxic T cells became more common with…

Depression may shut down the brain’s ability to make new neurons

A major study found that adults with depression show disrupted production of new neurons in the hippocampus, potentially weakening the brain’s ability to separate new experiences from painful memories. The…

Supercharged “natural killer” cells could be a powerful new cancer weapon

Researchers have found a way to supercharge natural killer cells, powerful immune cells that can attack cancer, so they can penetrate solid tumors and keep fighting once inside. In mice,…

Shingles vaccine linked to 24% lower dementia risk

Older adults who received the Shingrix shingles vaccine were 24% less likely to be diagnosed with dementia over four years in a study of more than 500,000 people. Researchers estimate…

You’re Invited to Eater Off Menu 2026

We’re excited to invite you to Eater Off Menu, a night dedicated to tasting what’s trending and what’s next in food and drink at our biggest Los Angeles event ever.…

Gut bacteria may unlock a hidden benefit of vegetables

Gut bacteria can transform nitrate and plant-based iron from vegetables and other foods into protective molecules that may benefit the heart and metabolism. In experimental models, higher levels of these…

Too much or too little sleep may make your body age faster

Both too little and too much sleep may be linked to faster aging throughout the body. Researchers analyzing 23 biological aging clocks found the lowest aging levels among people sleeping…

Bird flu is spreading. Your backyard feeder could make it worse

Backyard bird feeders could become unexpected hotspots for H5N1 as Australia’s bird flu outbreak spreads, bringing species together in ways that rarely occur naturally. Experts say stopping feeding is safest,…

Common medications may change your gut for years

Common medications may reshape the gut microbiome long after the last dose is taken. In a study of more than 2,500 people, researchers found lasting microbial changes linked not only…

Cannabis use linked to 37% higher stroke risk in massive study

A massive analysis involving more than 100 million people has found strong links between recreational drug use and stroke, including among younger adults. Cocaine was associated with nearly double the…