| Submitted by: Brigette
Boysen
Q: I have been noticing
more belly fat despite changing my dietary habits and feeling
low energy. What can I do to lose the belly fat and gain back
my energy levels?
A: I am often asked
this question this time of year. A better question would be
how do I lose fat? This is an important and timely question
because obesity is on the rise in the U.S. to the point of
epidemic proportions.
There is a phenomenon that can develop in the body called
insulin resistance (also referred to as Metabolic Syndrome
and Syndrome X). Insulin resistance refers to a state whereby
the cellular insulin receptor sites become unresponsive to
the binding of insulin. Several mechanisms have been found
that can contribute to insulin resistance, but for the purposes
of this article we are going to focus on one main factor:
elevated cortisol. Stress causes the hypothalamus to release
corticotrophin-releasing factor (CRF), which signals the pituitary
gland to release adrenocorticotropic hormone (ACTH), which
stimulates the adrenal glands to secrete cortisol. Elevated
cortisol causes insulin resistance, but insulin resistance
can, in turn, cause elevated cortisol. It's a vicious feed-forward
cycle. |