A body mass index is a method used to estimate your total body fat.It is done by dividing your weight in kilograms to your height in meters per square meter. These figures will give different people of the same age, gender, or even similar constitutions, different results. Different BMI in humans is a result of body fat.
Some exceptions to this rule exist, which means that the BMI index may not be accurate. Such inadequate results are mostly possible with bodybuilders and other professional athletes, then for pregnant women, elderly people, and for people with physical disabilities who are unable to walk and can have muscle loss. The index will also be mistaken for people with eating disorders like anorexia or people with extreme obesity.
It is not considered as the best measure of weight and health risk. It is believed that the volume of a person’s profession is a better predictor of a health risk than BMI. Still, it is widely used as a healthy-weight indicator. To make the correct assessment, use a BMI for adults. You need information about your weight in kilograms and your height in centimeters.
Basic Index Indicators:
Below 18.5 – They show malnutrition
From 18.5 to 24.9 – A healthy zone for young and middle-aged people
25.0 to 29.9 – Excessive weight zone
Over 30 – An index indicating obesity
Excessive weight or deficiency can affect your health. Disbalance in body weight leads to a chance to get sick is not definitely. Research is ongoing, although statistically, there is a higher chance of developing a variety of illnesses if you have excess pounds. For example, the risk of death increases slightly (by 20 to 30%) as BMI increases from 25 to 27, but when it grows above 27, the risk of death is rising steeply (by 60%).
Body BMI index in children
The healthy BMI for adults is from 18.5 to 24.9. But children are different because they are continually growing. This makes it challenging to set border values. For adults who have stopped growing, BMI increases are usually caused by an increase in body fat. But as children grow, their amount of fat changes their BMI. For example, BMI is generally reduced during the pre-school years and then increases in adulthood. BMI for a child or adolescent is interpreted differently from an adult and takes into account the age and sex of a child or adolescent.
Current BMI charts for children developed are useful for assessing overweight and obesity in children older than two years. However, they should only be used as a fingerprint guide when small changes in lifestyle should be made, and when you seek further advice from your doctor or dietician.
Some exceptions to BMI rules
There are exceptions to the BMI guidelines, which come from a variety of reasons. The main factors are:
– Muscles – have high BMI, but they are not exaggerated.
– Physical disorders – Physical disability and muscular asthma lead to lower BMI but not necessarily to lower body weight.
– Height – BMI is not entirely independent of height and has a tendency to overestimate obesity among shorter people and underestimates it among higher people. Therefore, BMI should not be used as an adult guide that is very short (less than 150 cm) or very high (more than 190 cm).
– Different ethnic groups – Asians and Indians have more body fat in any given BMI compared to the European people
Risks of being overweight (high BMI) and physically inactive
If you are obese (with a BMI over 25) and physically inactive, you may develop cardiovascular disease, high blood pressure, risk of developing diabetes, osteoarthritis, colon and breast cancer, depression and other mental health disorders.
Being underweight (low BMI, less than 18.5), carries the risk you may be malnourished and develop compromised immune function, respiratory and digestive diseases, cancer, osteoporosis.
Genetic factors. Fats around the middle is influenced by a person’s gene. But, there is something that you can do about it, still. Try to stay physically active, avoiding smoking, and eating unsaturated fat. Saturated fats can reduce the risk of developing abdominal obesity.