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.
How a jasmine tea tastes can depend on many factors, including what tea base is used (green, white or black), where both the tea leaves and jasmine blossoms were grown, what kind of process was used to scent the tea (traditional or commercial), and how the final cup of tea was brewed.