Why does hair stand straight up when you get goosebumps?!
Question: The goosebumps straigten your hair follicles, erecting the hairs. Back in the days when we were apes...if you believe in evolution, it was to create the illusion that you were bigger in a "fight or flight" situation. Whenever you're nervous your body has to decide to fight or flight, so goosebumps appear as an intimidation method against enemies.
The only other time goosebumps appear is when it's cold, and that was so our fur would insulate us better.
But now that we are evolved and pretty much hairless...it's kinda useless. lol
Answers: The goosebumps straigten your hair follicles, erecting the hairs. Back in the days when we were apes...if you believe in evolution, it was to create the illusion that you were bigger in a "fight or flight" situation. Whenever you're nervous your body has to decide to fight or flight, so goosebumps appear as an intimidation method against enemies.
The only other time goosebumps appear is when it's cold, and that was so our fur would insulate us better.
But now that we are evolved and pretty much hairless...it's kinda useless. lol
It is part of the momentary fight or flight response to stressful situations.
The hair stands up to catch and keep heat from escaping your body. to help keep you warm
There is a small muscle attached uder your skin called an erector pilli. It tenses when you are scared as an automatic reation . It is your body's way of telling you something is up.
These depends upon emotions and person to person. When there is happyness, some strain or fear, very cold wheather at that pimple goose develops to retain strength in the body. This is natural process.