Blumberg is a contributor for TIME. Blumberg is a contributor for TIME. Ilana Nankin loved being a pre-K teacher, but she and her colleagues often felt stressed by their jobs. So when Nankin noticed a ...

We all have strength training moves, we’d like to master – or that we wish we could perform a bit better. In her column, personal trainer, sports therapist and Nike Global Master Trainer Joslyn ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. With all the exercise machines at the gym and countless number of ...