What are some random and interesting science/health facts?

Question

any interesting fact
such as waht a brain freeze acutally does to you?
or what does a eprson feel when they have a seizure?

Answer 1

What causes brain freeze? When a cold object touches the mucosal surfaces of the pharynx and hypopharynx (mouth and throat), the blood vessels constrict (contract) in response to prevent the loss of body heat. As the coldness recedes, the blood vessels relax again, quickly increasing blood flow to the brain. This sudden release is what causes the intense headache sensation.

Another one - What is the wind velocity of a sneeze?

A sneeze, known technically as a sternutation, expells air from your body at speeds between 100 MPH to 630 MPH (measured by JFK Health World Museum in Barrington, IL).

Answer 2

The reason women put their wedding ring on the left "ring" finger is because there is an actual vein that runs from that finger that goes directly to the heart::romantic:::