Some users report a mental state of wakefulness , focus and alertness reminiscent of most stimulants , but often remark on mate 's unique lack of the negative effects typically created by other such compounds , such as anxiety , `` jitteriness '' , and heart palpitations .

Users report a mental state of wakefulness , focus and alertness reminiscent of most stimulants , but often remark on mate 's unique lack of the negative effects typically created by other such compounds , such as anxiety , diarrhea , `` jitteriness '' , and heart palpitations .
