Human Body
Exploring "Why" questions about Human Body
481 articles
Why do a lot of the elderly wear pastel/beige colours ?
The elderly generally aren't clothes-horses like us when we are younger because they don't have to go to work or social events every day. So they generally have less selection in their clothes. Pastel
Why do we hear static from radios and TV’s when there’s nothing being broadcast? Shouldn’t we just hear silence?
Because there isn't nothing there. Every spectrum is full of random noise from stars, radioactive decay, all sorts of things like that. It's just terrestrial broadcasts are so much stronger that it ov
Why was America reluctant to join the allies in WWII before Pearl Harbour?
The US was a lot more isolationist back then. Not only that, but they weren't the military powerhouse that they are today. The military might of the US was mostly untested.
Why can you hear the voices in the apartment above you so easily, but not the voices in the apartment below you?
Because sound travels through the solid medium ( the floor slab). On the floor above, people are directly in contact with the surface; while on the floor below, you're only depending on the noise trav
Why do our bones crack?
Do you mean like when people 'crack' their knuckles? If so, they're not actually cracking. It's the space in the joint expanding and synovial fluid rushing into that space.
Why do we sneeze when plucking our eyebrows?
The nerves for this area are very close to the nerves carrying sensory data from your nose. The signals overlap accidentally.
Why don’t people seeking physician-assisted suicide just overdose on their regularly prescribed pain medication?
I think you're missing the point. Any one can kill themselves any number of ways. The only limit to the number of ways you can off yourself is your imagination.
Why does poop, urine, sweat, etc. smell bad?
Many animals have evolved to not like the smell of poop because poop is not nutritious and is full of bacteria. The animals who didn't think poop smelled bad probably died from the bacteria. The anima
Why people talk to babies/dogs/cute things in a high pitched voice?
Lower pitched noises tend to represent anger and instill fear(Christian Bale as Batman), while higher pitched tones tend to feel happy or nice (Owl City). If you subscribe to evolutionary psychology,
Why aren’t you supposed to wake somebody who is sleepwalking?
because of the old wives tale that the trauma would kill them. in fact, you can wake up a sleepwalker at any time to no detriment. it would be just like waking them up from bed.