The human body is very good at maintaining weight, it is theorized that there is a pre-determined range in which your body likes to sit within. Scientists call this the set point theory. Generally following normal eating patterns your body might drift up and down a few kilos according to season or environmental prompts that cause you to eat more or less food. Your body maintains it’s weight by making you feel hungry prompting you to eat, or when you have eaten too much you burn more energy in heat.
There are a number of things that can drift our set point up or down. For example chronic over eating or lack of exercise, this is what occurs in the case of obesity. On the slip side, we can push our natural set point lower through exercise and healthier eating behaviours.
Due to this genetic predisposition to being at a certain body weight, the body has mechanisms in place to combat variations in food intake and hence changes in body weight.
When some one tries to lose weight though restrictive dieting, the body goes into famine mode and things occur hormonally to stop the weight loss.
When some one tries to lose weight though restrictive dieting, the body goes into famine mode and things occur hormonally to stop the weight loss. First and for most after only a few hours of restricting carbohydrate, blood sugar levels drop and we start to feel hungry. In some instances you may even get sugar cravings. This usually prompts dieters to cave in and seek out carbohydrates and sugars to combat this. Derailing the entire process of dieting and leaving the dieter feeling like a failure.
Another hormone leptin, plays a huge role in how much and when you eat. Leptin is a hormone that is released when we eat food. It controls the amount of fat our body stores it’s also a appetite suppressant. Without leptin people feel hungry all the time. This is exactly what happens on restrictive eating plans, low levels of leptin causes extreme hunger and people derail from their dieting plan.
Similar things happen with exercise. Some people can feel hungry post exercise, causing them to over eat more than what they burnt off doing the training in the first place.
Why does our body fight back after losing weight?
Our body fights against weight loss because we are trying to work against our genetics. Our genes are primed for survival. The body is designed to store fat for times of need. In our modern life this is a bad thing, because we have food in abundance and no reason to do physical activity unless we want to. We have ancient genes in a modern world, which is killing us.
Dieting and trying to stay slim is trying to over ride the bodies’ natural biological drive to survive. Research has shown that 80% of people weight rebound after sliming. Only 20% of people who lose weight actually maintain the loss long term. The reason why these people keep it off has nothing to do with the type of diet they choose, they keep it off because of the behaviours and new routines ingrained into their daily lives. [Read more…]