In the past, the first law of thermodynamics was often used to explain the control of body weight. Simply put, if the energy intake (food) exceeds the expenditure of energy (power/activity), where the weight. Conversely, the reduction of income and an increase in expenditure was believed to be the key to weight loss. Years, doctors and researchers considered that this simple theory as an answer. Now we know, but that the other factors. Some people may exercise religiously, reduction of the intake of food and still not lose weight. And, of course, we all know people who can eat anything you want, and you never get a pound.
Weight and obesity are complex conditions that are dependent on a variety of lifestyle, hormonal, biochemical, metabolic and genetic factors. amongst the factors To include:
Basal metabolic rate
Your BMR, the rate at which your body burns calories at rest. this rate depends on several factors listed below, for example, the level of activity and the thyroid function.
Intravenous
Overeating and consume more calories than your body uses energy may result in weight gain – regardless of whether these are from the calories come from fat, carbohydrate and protein.
Quality of food
Eating too much saturated fats, sugar, food processing and fast food outlets is associated with weight.
Physical activity
The level of activity is the main player in the mass balance causes weight loss Omissions. muscle, metabolic rate, and increased body fat, Regular exercise, on the contrary. may increase the weight and the pulse of the metabolism of the muscles.How can we apply our muscles use and generate heat energy calories, which supports the burning of fats.
Stress
Exposure of chronic stress may cause weight gain, especially around mid-section. This is caused by stress increases the production and release of cortisol, a hormone that increases the storage of fat body.
Function of the thyroid
Thyroid Gland plays a vital role in the control of metabolic. If your lazy and do not work optimally thyroid, this may reduce your metabolic rate and cause mass.
Insulin
At one level are high, the body stores fat more and it is not possible to use the fat as energy source – one of the reasons is also called "save fat hormone."It may be a problem with insulin resistance, who often develop hy-perinsulinemia (high insulin levels).
Genetics
Genetics may be responsible for about 25% of the cases of obesity, but experts agree that, with the genetic predispozice to obesity does not mean that it is your destiny.Several studies show that the factors are more important determinant of lifestyle.
Estrogen
High levels of Estrogen are associated with the weight of Many women still find. that their weight gain when estrogen levels are lower menopauze.This is because estrogen levels decline in menopauze as compensation mechanism, the fat cells to take in the production of estrogen. in order to meet the growing demand for menopauze, which adds to the size and number.
Testosterone
Testosterone helps maintain lean body mass of muscle and burn fat. lack of this hormone can cause loss of muscle mass and fat profit. This is a significant Contributor to the fat profits for older men.
Human growth hormone (HGH)
By increasing the weight of the reductions in fat storage and lean muscle, modifies the excessive growth of the human body weight. Levels decline with age, particularly after the age of 50, causes the offset in the composition of our body, we can reduce the HGH. gain body fat and muscle mass loss.
Serotonin
Serotonin is a chemical messenger in the brain that regulates saturation. when a low level, we can feel hunger and feel when they are high, we are satisfied. some products weight-loss serotonin to support the work of the elevation of saturation and reduce food flavours. Leptin Saturation is also governed by leptin, a hormone, produced by the body fat, researchers find. that some people are becoming resistant to compensate for it's own leptin. body produces more and more of the hormone, but "not satisfied" is not a property of the message receives the brain.
Marked: calorie intake • food • genetics • insulin • obesity, stress • thyroid • weight gain
Pod:Obesity
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