While it is healthy to adopt some lifestyle changes millennials are much more likely than any age group to go to extremes like using supplements and working out more than four days per week to obtain six-pack abs or bigger muscles show results of a new survey in the US. But doctors warn that supplements are not regulated by the US Food and Drug Administration (FDA) and could have unintended health consequences. And while gym culture encourages men to push themselves to their limits intense workout schedules often lead to burnout and an unhealthy rise and fall in weight and