"i have social anxiety &amp; knew i&#039;d literally fail out of grad school if i did not do something about my immense fear of public speaking (when my social anxiety is at its worst). i&#039;d have a shaky voice, dry mouth, nausea, my heart would race and i would be physically shaking. knowing those physical side effects would happen just made me more nervous and make it even worse.  i take one of these an hour before my presentations now (and only when i have a presentation, like every few weeks, it&#039;s not a daily thing!) &amp; it *definitely* lowers the physical effects so i can get through it, though i still get (way less) nervous. i only get a slight shaky voice, but my heart does not race, no dry mouth, nausea &amp; i don&#039;t shake. it was honestly a life saver for me."