Adrenal gland disorders are caused by problems with one or both adrenal glands or by problems with other glands, such as the pituitary gland. Specific disorders can develop when the adrenal glands produce too few or too many hormones, or when too many hormones are introduced from an outside source. Cushing's Syndrome.
Martial arts. Martial arts are codified systems and traditions of combat practices, which are practiced for a number of reasons: as self-defense, military and law enforcement applications, mental and spiritual development; as well as entertainment and the preservation of a nation's intangible cultural heritage.
In martial arts, yin and yang movements are used to balance each other. For instance, a strong (yang) attack is taught to be met by a yin, or yielding, response. Martial arts cultivate an awareness and use of yin or passive qualities, which are ignored by many sports and fighting techniques.