Human Body
Exploring "Why" questions about Human Body
481 articles
Why don’t I notice myself falling asleep?
Your brain shuts down most functions while going into sleep mode. The function we're most interested in here is the long term memory. For example can you remember the dreams you had the last 7 days?
Why is so common in the NFL to make the Super Bowl or at least make the Playoffs without making the Playoffs the previous year as opposed to the NBA?
1. Football is a more team oriented sport. A good Quarterback can't do much on his own, nor can a good Cornerback prevent an entire team from scoring.
Why did Chairman Mao kill so many people including teachers? What could he have been trying to accomplish?
He was trying to purge China of The Four Olds as these were seen to only further the exploitation of the classes. The Four Olds are old customs, old habits, old culture, and old ideas. A lot of teache
Why do we humans get so easy problems with their teeth while animals don’t brush their teeth at all and most of them do fine their entire life?
We have terrible diets that contribute to damage to our teeth. Many animals also don't live as long as humans, and that damage can take a while to really compromise your teeth. And ultimately, if an a
Why is the skin of many penises darker than the skin of the surrounding area?
Same reason vaginal areas are darker than surrounding skin. Not only is there increased blood flow in the region, but also greater levels of melanin, which causes dark skin tone. The more melanin, the
Why is “18 years old” most desirable in porn films? (NSFW)
They know their market. Who doesn't like the idea of watching some 18 year old girl get pounded? The funny thing is a lot of them probably aren't even 18.
Why are some people “mouth breathers” and other people “nose breathers”?
It's more natural for people to breathe through their noses when they are at rest. In about 85% of cases, mouth breathing is caused by blockage in the nasal cavities that prevents people from getting
Why have Facebook, Instagram, and Twitter during the past year gone from chronological newsfeeds to “customized” newsfeeds?
[Filter bubbles](_URL_0_), by encouraging you to engage only with content you already engage with regularly, maximize engagement with their services and thus shareholder value and ad revenue. It also
Why is it when a body part falls asleep, we perceive it as a static-y feeling?
The very short version is that you've restrictied the blood flow to a particular extremity. Nerves being the nessicary sensitive bitches they are rely on lots of blood to function properly. If that's
Why isn’t car bodywork made from stainless steel?
Because its too expensive. But that didn't stop DMC from building the deLorean. Thank goodness for poor business decisions.