Your piriformis is a muscle in the back of your hips under your gluteals that can wreak havoc if it’s upset… and it tends to get upset more often in females than males – likely due to our wider hips and softening hormones. Speaking of females, pink is for girls, right? Well, Japan sees pink [...] To access this post, you must purchase Basic 1-Year Membership, Basic Monthly Membership, Premium Membership or Core Fitness Assessment.