When it comes to your health risk, overweight is not equal to overweight and underweight is not equal to underweight. The decisive factor is where the fat sits on the body.
The two types of fat distribution can be compared to the shape of a pear and an apple. A pear is thickest in the lower area, while the largest circumference of an apple is in the middle.
The waist circumference is measured in the middle between the iliac crest and the lower ribcage. The hip circumference is the largest measurement above the buttocks.
Decisive for the individual health risk is the calculated waist-hip ratio.