Causes

 Variety of Physical & Psychological Behavior

— Physical—body stress, depression, and poor eating habits

— Psychological—emotional and behavioral

Estrogen Vs. Pregesterone

vEstrogen: egg released from the ovary is called the luteal phase (menstrual cycle last two weeks of cycle).

vDuring luteal phase, hormones cause the lining of uterus to grow thick and spongy, release from ovary.

vDuring the release, the level of hormone call progesterone take place

vProgesterone hormones interact with the chemical in the brain

Brain Chemical:

— Each hormone contains two neurotransmitters call serotonin and gamma-aminobutyric acid (GABA)

— Serotonin—brain chemical that interact many function in our body cause depression and cravings

— Each person responds differently to lower levels of serotonin than others

— GABA—plays an important role in feeling

— Endorphins: import in pain and pleasure, which estrogen and progesterone change their levels

— Norepinephrine: influence mood, blood pressure and heart rate