Human Body
Exploring "Why" questions about Human Body
481 articles
why do airport security take sharp objects off you (safety razors, safety pins, nail scissors) and then allow you to buy them at the pharmacy in departures?
The TSA exists mostly as a show of force to dissuade people from trying things in airport security zones. If a clever person really wanted to get something nefarious in, they probably could, but most
Why water makes your skin dry?
water that comes in contact with skin evaporates and takes with it many of the skin's natural oils. The more frequently that skin comes into contact with water the drier it gets, unless the oils are r
Why is French the preferred language for body care products.
I don't have anything to back this up but for the North American audience stuff in French sounds more sophisticated and refined as shown by the use of French to refer to more refined versions of stuff
Why do tears come out while yawning when we are really tired?
When we open our mouths to yawn, the muscles around our eyes put pressure on our tear ducts; when the yawn is particularly wide, the pressure is great enough that our facial muscles literally 'squeeze
why did Japan attack Pearl Harbor if America was minding its own business
The US wasn't really minding it's own business, and it inevitably was going to start minding its business less. It was supplying arms and finance to the enemy if Japan's allies, it was helping embargo
Why is it sometimes hard to find something that is right in front of our eyes.
Human eyes are way better at detecting moving objects than resting ones. Plus, a change in perspective may present the object in a better contrast/less obscured by other objects.
Why do the mouths of wild animals (bear, wolves, lions, etc.) smell so bad in comparison to humans?
cause they don't floss and brush their teeth. that bit of tendon that come from the racoon a week ago is still stuck between his teeth. same like when you eat beef stew and that one sliver of meat jus
Why does my head hurt when I get a headache?
It depends on what is causing your headache. Stress headaches, for example, can be caused by excessive tension in the muscles around the head. Many headaches are generally thought to be the result of
Why are some fish bones edible, and others are not?
They are small and soft so it does not matter if you swallow them, bigger and harder bones might get stuck in your throat and couse pain
Why does fresh cut grass smell so potent?
Because it's traumatized! Grass (and many plants) release chemicals when they are cut or injured that do a few things. The compounds help speed the healing of the grass by causing them to form new cel