FOOT BLISTERS: Using science and research to explain what causes friction blisters on feet and how preventative strategies work (and don’t work). Information you can actually use with confidence to perform blister-free!
To roll out your Psoas, lie face down on the ground with a ball on some books. Place the ball on the books in your abs above your hip to one side of your belly button. Relax over the ball and lie face down on the ground.