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.
Mental and Physical Enhancement. Yerba mate tea is rich in vitamins, minerals, amino acids, antioxidants, and polyphenol. These components enhance mental energy, focus, and clarity as it has the effects of caffeine without the adverse effects associated with it such as jitter, headaches, and stomach aches.