For years, the “gold standard” for measuring biological age — which is how fast you’re aging, regardless of what your birthday cake says — has been DNA methylation clocks. These tests are accurate.

We often think of aging as a gradual, consistent process affecting our bodies, and the brain is no exception. However, emerging research is painting a more nuanced picture of how our brains change ...

Our brains change more rapidly at various times of our lives, as though life’s clock was ticking faster than usual. Childhood, adolescence and very old age are good examples of this. Yet for much of ...

Scientists have uncovered a missing feedback in Earth’s carbon cycle that could cause global warming to overshoot into an ice ...

The middle-aged brain could provide a window into future cognitive health. A team reviewed evidence from human and animal studies suggesting that middle age -- commonly considered as the period ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. Death is the one universal that we all share. Whether we are ...