Researchers from the Perelman School of Medicine, University of Pennsylvania say that body mass index (BMI), which is based on the weight and height of a person, is an unreliable measure of body fat and does not take into account bone density, muscle mass, overall body composition, and sex and racial differences.
According to BMI calculations you have normal weight if your body mass index is between 18.5 and 25, you are overweight if it is between 25 and 30. A person with a BMI of 30 or more is obese.

30 second test for body weight

We all know that being overweight increases the risk of developing type 2 diabetes, heart disease, sleep apnea, cancer and other diseases and conditions.
The latest research confirms that body mass index is not a completely accurate way through which we can determine if we are overweight. This research has shown that even one third of the people with the risk to get a disease due to obesity are actually considered healthy.
The latest research has shown that one third of those who have risk to get a disease caused by obesity are considered healthy according to the body mass index calculations.
So, how we can determine whether our weight is healthy or not?
Here you can find instructions for a simple and easy test that instead of calculating the body mass index, takes into consideration the difference between your waist and height.
This test will only take 30 seconds of your time and you’ll need just a single rope. You can use tailor metro as well.
First, cut a piece of rope that is long as your height is, or just measure your height with the tailor metro. Next, fold the rope in half and place it around your waist. You should consider yourself as a person with healthy weight if you can tie the ends of the rope. But if the rope ends barely touch or don’t touch at all then you need to be a little bit concerned and think about starting dieting.