Boards
Do you ever inflict physical pain on your body in order to stay awake?
I keep nearly nodding off at my desk, so to combat it I pinch the inside top of my left arm with my fingernails very hard until I break the skin or it hurts too much. This sends a wave of pain through my arm, and helps to keep me awake.
Are there any other techniques? I don't want to rely 100% on this method incase my body gets used to it and it stops working as well.