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.
Yerba mate tea is a South American beverage made by steeping the ground leaves and stems of the yerba mate plant. Yerba mate is a central nervous system stimulant containing caffeine, but it also contains a number of other nutrients, including antioxidants, amino acids, polyphenols, vitamins and minerals.Yerba mate is touted as being a safe and effective nervous system stimulant with few side effects and many health benefits.erba mate is a central nervous system stimulant containing caffeine, but it also contains a number of other nutrients, including antioxidants, amino acids, polyphenols, vitamins and minerals.