When I was given the opportunity to try out the Women’s Health Flex Challenge, it seemed like a great place to start. The challenge is a 28-day customizable workout plan, with follow-along video ...

Flex, for example, is owned by the Chinese company Chervon (not to be confused with oil giant Chevron), which also owns the well-liked Ego and Skil brands. Chervon acquired Flex in 2013 ...