Fertility, Overtraining and Fat

Obesity is a buzzword in the United States everyday.  Michelle Obama has championed the anti-pediatric obesity epidemic and white sugar has become synonymous to illicit drugs.
But....NOT ENOUGH fat can lead to infertility in females.  Every woman needs a certain amount of body fat to produce hormones necessary for nerve cell regeneration and fertility (such as estrogen & FSH ).  A certain percentage of body fat tells the brain that 'the body in question' will be able to carry a fetus to maturation.  It's quite simple:  reproduction is Darwian and historically, nothing but a means to the survival of a species.  Only the strongest, healthiest women could carry a fetus to term in the past.  Now, with modern medical miracles, women who categorically would not fit into 'strong and healthy' are able to bear children.
Women who overtrain or diet to the extent that their overall BMI is below a healthy level tend to have either no menstrual cycles or poor cycles.  This is because they do not have enough fat to keep their hormonal levels optimal.  The brain sees this as an unfit body for reproduction.

Here's Your Healthy Tip of the Day:  Both obesity and abnormally underweight women have problems with conception.  If you are an exercise psycho who measures out every morsel before it goes into your mouth and you can't figure out why you're not getting pregnant - do yourself a favor:  don't look in the mirror; try going to a nutritionist and reliable personal trainer: together you'll formulate a plan that will work for your lifestyle and get your hormones and menses back on track.