Reflexologyinvolves applying pressure to specific areas on the feet, hands, or ears. The theory is that these points correspond to different body organs and systems; pressing them is believed to positively affect these organs and a person’s overall health. (For example, applying pressure to a spot on the arch of the foot is believed to benefit bladder function.) A person can either use reflexology on her or his self, or enlist the help of a reflexologist. Millions of people around the world use the therapy to complement conventional treatments for conditions including anxiety, cancer, diabetes, kidney function, and asthma. Some studies have found that reflexology can improve respiratory function in breast cancer patients, reduce fatigue, and improve sleep—but other studies have reached less definitive conclusions.