I read something several months back that applies to this topic, but it might be a bit controversial. Well, maybe not, but it is all very interesting. People on LSD tend to become left handed, except left handed people, which tend to become right handed while experiencing the effects of the drug. Prolonged use of LSD seemed to awake the experience of ambidexterity in many people, but the full cause of how or why has not yet been explained. The same effect has been found with certain types of magic mushrooms as well, though it is interesting to note that not all types of magical mushrooms seem to cause this odd behaviour.

The human body is absolutely amazing in its complexity and how it works.