Look at yoga mats, plates mats, foam mats and professional fitness mats and you’ll notice something they all have in common: they’re flat. So why would anyone want a mat with raised bumps all over it? Well, maybe because walking on these bumps can strengthen your immunity, relieve body aches and chronic pain, ease muscle fatigue, improve your circulation, regulate your digestive system and make your sore feet feel better—all through the power of an ancient healing art called foot reflexology. What’s foot reflexology? Like acupuncture, reflexology is based on the theory that parts of the human body are connected