Scientists are getting a better handle on the complexities of how immunity works. Attentive readers might have noticed my absence over the last couple of weeks. I’ve been trying to recover from a bout ...

Could AI hold the key to answering questions that have stumped doctors and scientists for decades? A recent study at Cold ...

A blood draw can already reveal cholesterol levels, blood sugar, and signs of infection. Before long, it might also flag depression, not by measuring a single molecule but by reading the biological ...

A woman walks into a clinic for a routine blood draw. Weeks later, a lab report flags something unexpected: the immune cells in her sample are aging faster than they should be for someone her age. No ...

Vaccines protect most people from serious illness, but the strength of that protection can vary considerably from one person ...

Scientists have discovered a possible new way to slow the brain damage caused by Alzheimer’s disease. The research suggests ...

Rare T cells become more common after age 100, suggesting that the immune system may continue adapting even in extreme old ...