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.
What is Taekwondo? Taekwondo is a traditional Korean martial art, which means the way of kicking and punching. In taekwondo, hands and feet can be used to overcome an opponent, but the trademark of the sport is its combination of kick movements. The origin of taekwondo dates back to Korea's Three-Kingdom era (c.50 BC) when Silla Dynasty warriors, the Hwarang, began to develop a martial art - Taekkyon (foot-hand).