Intro To The Menstrual Cycle
Basics of female hormones. 

This is important information to understand as you work to balance your hormones through the Metabolic Effect method. 

Not every woman is in the same hormonal situation.

 Some are in peri/post menopause, some may have PCOS, some have regular cycles, some are on hormone replacements such as HRT or oral contraceptives.

The way a normal textbook menstrual cycle works, it begins on day 1, day 14 is ovulation and then ends on day 28. 

Estrogen elevates between day 1-14 and then begins to drop significantly to day 28.
  
 During the first 14 days, estrogen is very dominant and the last 14 days progesterone is dominant. 

Estrogen is anti-insulin and opposes the action of cortisol.  We also know progesterone also opposes cortisol, the stress hormone. 

Estrogen is an anti-thyroid hormone as well.  This is why women have larger thyroid hormones than men.  So when estrogen is high, it can slow down the thyroid.  Progesterone is thyroid-stimulating and causes the thyroid receptors to be more active.

Progesterone also has a special relationship with the adrenal gland because the adrenals make progesterone.  

The adrenal glands control the stress levels in your body and when overly stressed, they can easily become exhausted and stop functioning.

This is very important once menopause kicks in because since the ovaries will no longer produce progesterone your body has to rely on the adrenals to do this. 

If your estrogen is low and your adrenals are poor functioning, then you are greatly prone to fat storage as you have nothing to bring down the insulin.

So you can see how much more important it is to keep your hormones balanced to keep them from working against you.