New research suggests that consistent aerobic exercise can help keep your brain biologically younger. Adults who exercised regularly for a year showed brains that appeared nearly a year younger than ...

Doctors and physiologists point to studies that show tiny, regular bursts of effort — like climbing a few stairs — can capture many of the benefits of the gym.

Environmental change doesn’t affect evolution in a single, predictable way. In large-scale computer simulations, scientists discovered that some fluctuating conditions help populations evolve higher ...