Muscle twitching is caused by minor muscle contractions in the area, or uncontrollable twitching of a muscle group that is served by a single motor nerve fiber. Muscle twitches are minor and often go unnoticed. Some are common and normal. Others are signs of a nervous system disorder.
Yerba mate has a slight astringent bitter taste due to the high tannin content of the leaves. Researchers have found that leaves from younger plants possess more tannins than leaves from older, more mature trees.
Mate, also called yerba mate, Paraguay tea, Brazilian tea, or matÃ©, tealike beverage, popular in many South American countries, brewed from the dried leaves of an evergreen shrub or tree (Ilex paraguariensis) related to holly.