Cursing when in pain releases enkephalin, which raises your pain tolerance.
If you stand up too fast and you start to black out, tighten your abs as hard as you can.
If you have to pee so badly but you are in a meeting or class, scratch your calf muscle it will reduce the urge.
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Hack Your Life
RandomThis book is all about tips, tricks and hacks on : 1.How to make your life easier 2.How to get what you want 3.Psychological tricks to understand people better 4.How to win at everything 5.And lastly how to be the best.