Which organ has mad regeneration powers?
via: Getty
Your liver can regenerate, and much faster than you think. I had a quarter of my liver removed, and a month later it was back.
The dive reflex. When your face is submerged in chilled water and you hold your breath it causes your heart rate to lower and blood supply to be increased to vital organs such as the heart and brain. This is useful to help increase the amount of time you can hold your breath, but is also useful in helping to manage PSVT (paroxysmal super ventricular tachycardia) which is characterized by occasional bouts of high heart rate.