Human Body
Exploring "Why" questions about Human Body
481 articles
Why does burnt stuff taste so bad?
It's because foods have sugar in them. Caramelization is what makes the sugar taste sweet, and if it burns, the compounds in the sugar change, making it taste bitter. So basically, the hotter the suga
Why do Republicans want to repeal The Affordable Health Care Act so badly?
It's not really a giant health insurance plan, it's a bunch of reforms to the health care system, one of which being an online marketplace where you can buy private health insurance. The main issue th
Why is when my body is freezing (like making snow balls without gloves) and I go and put them under a hot sink they ich like crazy?
When your hands get cold the blood vessels in them contract. When you run them under *hot* water they expand rapidly, stretching them and the area around them, causing discomfort.
Why cant we just create nerves?
We can grow nerves, just not in a way that's useful, due to the lack of organization. Say you have a big mass of copper. You could very easily melt it down and pour the molten copper into a rectangula
Why is body odor usually confined to the armpit, even when a lot of people take extra measures to protect against it?
The human body has two types of sweat glands: eccrine and apocrine. Eccrine glands are present all over, and typically secrete sweat that is mostly made of water. Their purpose is to keep your body co
Why couldn’t artists 500+ years ago achieve the same level of detail as artists today?
I heard it had a lot to do with the invention / discovery of the camera obscura. This helped people understand perspective / proportions / etc better. Here's a quick article I found about it - but the
Why do I get so lovey-dovey when I’m tired?
Depends on what you mean by tired and lovey-dovey but probably due to the happy chemicals your brain releases when you're about to fall asleep. Dopamine and such.
Why does rubbing your eyes feel so good? And is it bad for your eyes/vision?
I have no idea why rubbing your eyes feels good, but if you rub hard and long enough (over a long period of time), you can induce a condition called [keratoconus](_URL_0_), which is a deformity of the
Why do some people (like me) get really squirmish about things like Veins, the inner mechanics of Reproductive organs or blood and injections, etc ?
It sounds like you might be experiencing a vasovagal syncope, which is the mechanism that causes people to faint at the sight of blood. You get this because you are a wimp. No, actually this happens b
Why do Americans pay for so much for healthcare, yet other countries are able to get by without paying nearly as much?
It's not free in other countries. Those countries pay for medical services through higher taxes. That being said, the final cost of foreign procedures is usually only a fraction of the price.