Human Body
Exploring "Why" questions about Human Body
481 articles
Why don’t animals pull their muscles when exerting themselves?
IamA veterinarian. Animals over exert themselves all the time. My favorite example is the guy who came to see me for lameness in his 10yr old dog.
Why does only your own saliva take out your own blood in fabric (like a tshirt)?
Not true at all. Even if saliva can remove blood (it can, but so can water), whether or not it comes from the same source as the blood makes absolutely no difference.
Why do Formula One look like super technological advanced driving vehicles, while NASCARs just look like cars?
Nascar and stock car racing evolved out of redneck bootleggers with a carload of moonshine trying (and usually succeeding) to outrun law enforcement back during prohibition. They did this using every
Why is it that you never think anything is weird when you are dreaming, it’s only when you wake up you realise how strange things actually were?
To be brief, during a dream it's basically your brain taking a rest. So like a computer it shuts off all non-essential functions, and one of them is called the dorsolateral prefrontal cortex. This par
Why do most live performers remove their in ear moniters when they perform? If it affects their performance, why do they wear it in the first place?
> As a professional musician for over a decade, the simple answer is this: In-ear monitors are excellent for keeping a fine tuned ear on what is being played, hearing click tracks, and getting cues
Why is it that our eyes cannot repair their vision? so we don’t have to wear glasses or contacts etc…
This isn't a complete answer but they can, some people when they get glasses say their natural vision improves after a while. That may only apply to minor eyesight issues though.
Why can I be starving when going to sleep and not feel hungry at all when I wake up ?
Fasting State. When you're not actively digesting foods your liver regulates your blood sugar by exporting glucose into the bloodstream based on the amount of insulin in the blood. So you wake up with
Why does alimony exist in a world fighting for equal women rights? In other words, how is it okay for women to demand men’s earnings after a divorce?
Usually the man has a job in the marriage and it is by the highest earner not always by the man
Why does it hurt our eyes to look at something that is bright?
Human eyesight evolved in a specific environment to serve a specific purpose, so eyes are attuned to the needs of that environment. Eyesight is merely a light collection device, so any light spectrum
Why do even videos from the 2000’s appear to be very old/low quality when we remember viewing them in higher resolution.
You said it, higher resolution. They'd look just fine if you were viewing them in 800x600 or 1024x768, but you're not. You're viewing them in 1920x1080 or higher, stretching the video onto an area sev