Human Body
Exploring "Why" questions about Human Body
481 articles
Why do veterans in the USA have a seperate hospital/healthcare system?
It was seen as an obligation that the citizens would pay for the healthcare of soldiers who were injured in the service of the country.
Why can the aging process of alcoholic beverages not be artificially sped up or completely skipped?
Often alcoholic beverages are aged in wooden barrels. During the aging, the beverage is infused with flavour from the wood of the barrel. While theoretically it would be possible to artificially add t
Why do we have two of some organs (e.g. lungs, kidneys, etc.) but not of others (e.g. liver, pancreas, etc.)?
Surface area. Our body is constantly filtering via the kidneys and exchanging gas via the lungs. Having twice the amount of alveoli and twice the amount of nephrons helps our body keep up with the amo
Why is it that Asians who come to America not knowing English do better, within a few years , than most Americans who lived here their whole life?
because the Asian immigrants that come here, at least the highly visible ones to mainstream american society, tend to be wealthy, highly educated, and highly motivated. If you compare them to the broa
Why are there so many seagulls in the local shopping center parking lot even though I’m nowhere near close to the ocean or a large body of water.
Seagull is a common or informal name for many different types birds that are located pretty much everywhere across the planet. The gulls you are seeing are probably ring-billed gulls. They do like to
Why do humans find eyeless or pitch black eyes scary/unsettling?
It's called The [Uncanny Valley](_URL_0_), and it's not limited to eyes. Basically, the closer something gets to looking human, the more we can sympathise with it - until it gets to be about 95%-99% h
why do some people’s abs appear bloated or rounded?
Growth hormone. Bodybuilders take them to get bigger but it doesn't just make muscles bigger. Organs grow too so their guts is basically pushing outwards behind the abs.
Why do TV actors earn residuals upon re-airing for their performances, but recording artists don’t earn a dime when their music is played on the radio?
This answer is gonna be totally unsatisfying, but its the answer Because thats just how the business model those industries work. Yes I know, unsatisfying. Here's some details.
Why is it, that when I get really tired, everything is so much funnier?
The phenomenon of being more easily amused falls under Emotional Lability which means emotional changeability or instability. You're probably more likely to cry too. In extreme cases, this is a medica
Why I can’t look in different directions with my eyes.
You can. Back in 2006 while doing "How to [cross](_URL_1_) just One Eye" and "Speak with an Echo," I got ambitious and tried inducing [MartyFeldman-o-vision](_URL_0_). I had some fresnel prisms left f