How Dieting Effects Hormones
Eating Like A Mouse Got You Feeling Run Down?
Hey, I’m burning fat so why do I feel so tired and sluggish? Well, the short answer is that your body does not want to starve. As fat cells are depleted they release leptin which slows down your metabolism until the fat is restored.
But to understand the total impact on your body lets start with a little bit of history. The Minnesota Starvation Experiment of 1944. This study was conducted for the US military to aid with rehabilitation of famine victims in Europe and Asia following World War II. Healthy, normal weight men underwent a 24 week 1800 calorie a day diet in order to measure the effects of calorie restriction.
Let’s just pause more a moment. They used 1800 calories a day to induce famine. Considering how many diets I have seen recommending less than that, I was a bit surprised with this number.
The study concluded that restrictive dieting significantly increases severe emotional distress and depression. Dieting causes a pre-occupation with food during the diet and the recovery phase, a significant decrease in metabolism, and may cause edema in the extremities.
Many of the study participants who were previously healthy developed eating disorders such as anorexia and bulimia. A key finding of the study was that dieters need both physical nourishment and psychological training in order to recover from the dieting process.
Let’s look at how this applies today. The autonomic nervous system regulates the body’s unconscious actions. It’s comprised of two subsystems; the sympathetic nervous system and the parasympathetic nervous system. The sympathetic nervous system’s primary process is to initiate the flight or flight response in the body. While the parasympathetic nervous system’s primary process is maintenance of […]