About 20 years ago, a neuroscientist named David Eagleman strapped a bunch of students into harnesses, hoisted them to the top of an imposing metal tower, and then, without warning, dropped them 150 ...

Slow-motion strength training is easier on joints and connective tissue, which may reduce risk of injury. The high-intensity workout is just 20 minutes, once a week. Seniors swear by the routine, but ...