The World Health Organization (WHO) defines the Body Mass Index (BMI) as the international standard for determining the body size of an individual aged 18 to 65 years.
There are four different levels:
- Undernutrition (less than 16.5)
- Lackiness (between 16.5 and 18.5)
- Normal index (between 18.5 and 25)
- Overweight (between 25 and 30)
- Obesity (moderate between 30 and 35, severe between 35 and 40, morbid if greater than 40)
The Body Mass Index: what's the point?
Its number, according to whether it is too low or too high compared to the established average, thus makes it possible to alarm on possible health problems related to the weight.
For example, a large BMI favors diseases such as cardiovascular and cholesterol-related diseases. On the contrary, if it is too low, it can prevent certain eating disorders such as anorexia.
How to calculate your BMI?
It all depends on the weight and size of the individual. It suffices to use the formula IMC = mass / size² : that is to say that the BMI corresponds to the result of the mass in kilograms, divided by the square of the size expressed in meters.
For example, an individual measuring 1.81 m for 95 kg has a BMI equal to 95 / 1.81² or 29.
You can also calculate it automatically through online forms.
Is it very useful for everyone?
If BMI is one of the most reliable scales for determining its ideal weight for good health, it is not an absolute value.
It is not relevant for pregnant women in particular, top athletes or the elderly, who have different metabolisms and care. In addition, it does not take into account muscle mass or bone structure.
It can also be used for children but with additional parameters in the calculation.
It is best to consult a doctor or health professional if your BMI is less than 16.5 or greater than 30.
