A weight loss is not so much about getting on a fast diet, as it is about a healthy lifestyle. The food intake is supposed to provide us with the energy, minerals and vitamins needed to run our body and to get it working. When this is out of balance, and the body receives excessive amounts of energy, the weight gain is a fact.
What is it all about
Our weight depends on our lifestyle, age, and our genes. An inactive life with a lot of fast food will almost certainly get us overweight. A stressful life, diseases, alcohol consumption, and smoking also affects our weight. Weight is all about eating and moving. As long as the food intake provides the body with the same energy that is used, no weight gain is possible. It is when the body gets more energy than it has use for, that a weight gain occurs. The energy is turned into fat. This creates unhealthy body weights and lot of misery for people getting overweight.
Calories
Calories measure the amount of energy in food. The energy comes from fiber, fats, proteins, organic acids, polyols, and ethanol. The amount of food energy, calories, in certain foods can easily be measured, and most foods sold in the store come with a calorie label. A normal body uses about 1 900 kcal each day just to run the system. We also need energy to use our body and brain. How much energy we actually need during a day depends on our resting metabolism and the physical and mental activities we endure during that day.
Metabolism
The word metabolism accounts for the rate at which the body burns calories. The amount of energy the body needs to keep functioning is measured by the Basal Metabolic Rate, BMR. This measurement is important as this affects the body weight, at least in an indirect way. A person with a high BMR is able to eat much more than a person with a low BMR, as the former person burns more calories than the latter.
Fast diets
A fast diet can actually get us fatter in the end. During a starving period the BMR goes down to a minimum and the body stores as much energy as it can. This makes us tired and in a bad mood. The starvation period also leads to a crave almost impossible to resist. When the diet stops we tend to eat too much again, and the body stores as much energy, in the form of fat, as it possibly can. Therefore it is vital to keep the metabolism going all through the diet, and to get on a diet program that gradually leads us to an ideal weight.
Measuring body mass
Measuring body mass is a way of knowing how much excessive fat there is on a body. The most common form of measuring the body fat is by BMI. This is calculated as followed: BMI = mass, kg / (height, m * height, m). The BMI for a person with a normal amount of body mass is between 18,5 and 24,9. This measure do not account much for the distribution of fat or muscles, though. Muscles are of high density and an athlete can get a BMI higher than recommended, still being perfectly in shape.
Body Volume Index, BVI, on the other hand measures the relationship between mass and volume. This is a far more complex way of getting information about the shape of the body, as the waist circumference and the hip-waist ratio is taken into account.
original article by Top10DietTips.com
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