Why does blood turn brown when it dries?

Answer 1

Blood that is alive is red outside the body. When the cells die, they change chemically so that they are no longer able to filter out all the colors from the sun such that only red is seen. Now they can only filter white light to result in brown.
There ya have it! Yayyyyy!

Answer 2

Oxygen is what keeps the blood red. When blood dries, oxygen evaporates causing it to turn brown.

Answer 3

Becuase of the oxygen in the air. It's the same reason that blood is only red when it exposed to air...the blood on the inside of your body is actually blue until it come in contact with oxygen. The longer blood is exposed to oxygen, the darker it becomes.

Answer 4

The brown stuff is previous blood. intercourse does not have some thing to do with this disaster. while you at the instant are not on transport administration, you may desire to communicate to your rfile approximately getting placed on it. it would desire to help save watch over your cycles, and allow you to've a trouble-free era. you frequently do prefer to bypass forward and inspect this extra on condition that it is likewise an early sign of PCOS, that still will purpose infertility.

Answer 5

Same reason iron turns brown when it rusts.

Answer 6

cuz blood is full of the red blood cells(duh) and when it leaves the body the cells eventually dies, and they turn brown

Answer 7

Depends on what it dries on.

Answer 8

Because the iron in it rusts.

Answer 9

because of the high copper content. that's the same reason it has the smell as well.

Answer 10

because all women bleed from a cold black heart.