Human Body
Exploring "Why" questions about Human Body
479 articles
Why do we get dizzy when we spin around?
Your orientation in space is detected by fluid and calcium deposit movements in your inner ear. When you spin around and then stop, the fluid and stuff in your inner ear keep moving for a little while
why in Germany or The Netherlands the youth unemployment rate is under 9% while in countries such as Greece, Spain and Portugal the same rate ranges from a 40% to 60%?
Overall unemployment in Germany and the Netherlands is significantly lower, so without a lot of unemployed, experienced workers around, businesses have no real choice. They would either have to get in
Why does it feel so much better waking up after 8 hours of sleep at 9, rather than 7 or 5?
Your pineal gland releases melatonin when it is dark. This neurotransmitter tells your brain and body to regenerate. When you wake up while too much is still in your system, you feel bad because you a
why is it that the age a person can legally appear in porn is universally at least 18 (in some countries older) but age of consent varies so much?
Just a guess I would think that we hold a child at a sexually mature age competent to engage in an intimate relationship. We do not see them competent to understand the ramifications of what appearing
Why is it that my 12-year old dvd player can handle the newest (encrypted) DVD’s without a hitch but my 2013 Macbook is unable to duplicate my purchased dvd for a digital backup?
Your 12 year old dvd "Player" ? Playing a DVD and ripping a DVD are two different things.
Why do humans scream when scared?
To signal others about the danger. It's typical for social species to instinctively let out cries or other ways of warning the others of the tribe about approaching predators or enemies. Such collecti
Why does my skin itch when i’ve been sweating and touch grass?
Grass makes very small (near microscopic) cuts on the skin, and when those cuts are contacted with liquid (in your case, sweat) it itches. It's like salt in a wound, but much smaller.
Why do planes disappear in the Bermuda Triangle?
The area actually has no special power to make planes disappear. However, it is prone to storms, and there are wide stretches with no place to land, so from time to time a small plane is lost with no
Why haven’t our bodies changed to make childbirth less painful?
So the only way that the process of childbirth would change is through evolution of some kind. The only way evolution happens is if the genetically superior reproduce and those who aren’t die. Theoret
Why does breathing in through your nose and out through your mouth work so well during exercise? I know it works well it just seems strange to me that it does.
Am I the only person that can't breathe in through my nose and out through my mouth when I exercise? I go running, and I can do that for the first quarter of a mile, but then I get too out of breath a