Biology

I have a wierd question: can a 250 lbs 5 foot 7 woman stand and walk on a 170lbs 6foot 2 man without breaking or damaging anything inside of him?...

Biology

how many second the people before blink...

Other

Some people like to stand on their head or hands so they can get a lot of blood in their heads. Is this good practise and what happens in their...