Why is it that when a girl is on her period they feel tired?

Question

Ok so my friend just asked me when she gets her cycle why does she feel so tired and all she wants to do is sleep. I really didn't have an answer for her but i can always ask Yahoo Answers

Answer 1

As a man, I could imagine the toil it takes on you all's body.  Explusion of blood, the cramps, stuff I'm making myself tired just sharing what little I know about it.

Answer 2

Baisicly cuz ur losing so much blood. if u hav more iron in ur body it will give u more energy.

Answer 3

Fatigue, drowsiness and sometime, upset stomach feeling.

Answer 4

You are losing iron when you are losing

the blood.  This makes you tired.  Does

she take a vitamin with iron? It won't take

all the tiredness away, but it'll help.

Answer 5

because its a little hard on ur body

Answer 6

The blood loss is probably not enough in itself to cause tiredness in a fit healthy woman.

However it does take a lot of energy to rip mens' heads off during PMT and that is probably the main cause.

Answer 7

women need to take iron daily if they bleed.

Answer 8

Because she's loosing red blood and it's a huge source of iron in a woman's body.

Answer 9

The loss of iron in the blood.