Human Body
Exploring "Why" questions about Human Body
481 articles
Why does rain make people tired?
It's probably a combination of reasons. Humans like to be awake all day and sleep all night. And we take our cues from the sun.
Why are boneless wings even called wings?
Because you can't walk into a restaurant and order 20 pieces of "that bomb ass shit".
Why does current culture/ideas differ so much compared to a 100 years ago? Was it also like this in the past, say when you compare 1500 AD and 1600 AD?
From 1500 to 1600, you have a pretty thorough revolution of agriculture in Europe as the first contact with the Americas was less than a decade before the start of the century; there was never a tomat
Why do babies cry? Wouldn’t this be an adaptive nightmare for early humans who had to deal with predators?
Babies are cared for in the group. A group of humans is going to be loud anyway, so having a baby cry doesn't particularly add to that loudness. And very few predators would attack a group of armed hu
Why are most small cars front-wheel drive in favor of rear-wheel?
Additionally, building a rear-wheel drive vehicle is actually far more complex that building a front-wheel drive vehicle. This is for a number of reasons that would take a while to explain, but essent
Why do healthier versions of a food items cost much more than the unhealthy versions?
The comments here are all good but miss one point; 'healthier' foods generally do not have very long shelf lives thus increasing the likelihood of waste for the store. To balance this, they increase t
Why is it that you sometimes get the sensation of falling when you’re about to fall asleep?
That is a phenomenon called the "[Hypnic Jerk,](_URL_0_)" and it's very common. Scientists don't really know the cause but it may be attributed to anxiety, caffeine or stress. (I know I get it more wh
Why do we only say “an” before the number 8 but for any other number, we say “a”. For example, “an 18-year-old”, “a 17-year-old”, “a 91-year-old”
Because eight/eighteen/eighty-eight begin with a vowel-sound, and therefore get an 'an'. While seventeen, ninety-one or five do not and therefore get an 'a'.
Why does cleaning our tongue (I.E When brushing our teeth) make our breath smell better?
Because your tongue is home to tons of bacteria that cause bad breath. Brushing your tongue removes them.
Why is it that Syrian rebels who are backed by several nations are waging war in sandals and Nike Jacket, whereas ISIS, which is not known to have any strong international funding, is tricked-out w…
The thing to remember is ISIS hasn't just appeared out of nowhere, they've been [active in Iraq for over 10 years](_URL_0_). They've had many successes in the past, and each time they force out Iraqi