The extremely challenging fitness program (as the name would imply) has you work out to your max for three minutes, then rest for 30 seconds, for a total of 30 to 60 minutes. Eminem says Insanity was so much fun that it quickly became his main workout.
Datum: 04-08-2015 01:21 | Bron: Yahoo Health
Keer terug naar het nieuwsoverzicht: Fitness nieuws
