Human Body
Exploring "Why" questions about Human Body
479 articles
Why do people learn differently, i.e, by hearing, by visual, and by touching?
They don't. It's just an old myth. > There have been systematic studies of the effectiveness of learning styles that have consistently found either no evidence or very weak evidence to support the
Why do people twitch, or jump, while they are falling asleep?
Ah I hate these! It's a called a hypnagogic jerk and they occur during the transition between being awake and asleep. There are a couple of theories for them, such as accidental neuron misfiring, but
Why is it that after waking from a bad dream, even though I am awake and aware that the dream was not real, I am still irrationally freaked out and disturbed by the events of the dream for a good a…
If you are having a scary dream your body may start producing Adrenaline, or other hormones that help you deal with stressful situations. Even though you have woken up, those hormones are still active
Why does massaging a sore muscle bring pain relief, but touching an acute injury hurts?
A muscle's natural state is to be relaxed. Contraction causes movement. A "sore" muscle is in a contracted state even when it shouldn't be.
Why can I hear a TV from another room, even if the volume is off?
Although I can't understand what you're saying in the explanation, I think I know what your'e talking about. Old TVs emit a very high frequency noise that is constantly on, even with the volume muted.
Why do objects, like my couch or a coin, feel bigger than they look if my eyes are closed?
Your hands are not 'tricked' by distance, like your eyes. On top of that, your field of view tricks your mind into processing an object within an entire scene - a couch is viewed in the living room -
Why do old broken bones and injuries hurt when there are extreme highs or lows in the weather.
Weather is caused by pressure differences. Like when you see on the weather channel the (H) and (L) converging. [here](_URL_0_) you can see a great visualization of that.
Why does diarrhea come so quickly when food takes hours for the stomach to digest and days to pass through the intestines?
Digestion takes significant time *if everything is going nominally.* Diarrhea is well outside the range of nominal digestive operations. Your guts want to get rid of something, stat, and your asshole
Why is it when you see pictures of fashion models on the runway, they’re wearing something nobody in there right mind would wear?
Think of it more as a walking art installation. Instead of a crazy ass sculpture or a painting, it's a person walking around all decorated and shit.
Why do large companies sign a 10-20 year building lease when that comes close or exceeds the building value?
Often it's a cash-flow decision. Purchasing the building outright costs a lot of upfront money (which either has to come from assets or from a loan... which is basically like a lease but with more ter