Where I train we smack our palms and knuckles against cinderblocks. This action creates tiny fissures in the bones. When those fissures heal, the bone is stronger. I can put the blade of my palm through a two-by-four.
Lisa Unger
Where I train we smack our palms and knuckles against cinderblocks. This action creates tiny fissures in the bones. When those fissures heal, the bone is stronger. I can put the blade of my palm through a two-by-four.
