Most fascinating Scientific Fact

1. Erection after death: when a male dies facing down, or in a vertical position, a  gravity-enduced, post-mortem erection occurs.

2. Alien hand syndrome: a strange neurological symptom in which a patient's hand starts moving on its own.

3. Men can breastfeed: Male lactation is becoming more common due to available hormones and medication that stimulates the mammary glands.

4. Third nipple: not a strictly human phenomenon, the additional nipple can appear in most mammals.