According to the Centers for Disease Control and Prevention (2018), a person with a body mass index (BMI) at the 90th percentile is

at risk of being overweight.

Explanation:

A good body composition refers to the state of having a well-balanced proportion of body fat and non-fat constituents (mass); where the body fat is in a lesser percentage while the non-fat mass such as organs, bones, muscle etc are in a higher percentage. Additionally, an individual can develop a good body composition by exercising properly, eating a well-balanced diet and regularly checking their body mass index (BMI).

According to the Centers for Disease Control and Prevention (2018), a person with a body mass index (BMI) at the 90th percentile is at risk of being overweight. The body mass index (BMI) of a person can be measured by taking a measurement of his or her height and weight.

In conclusion, fitness experts usually advises everyone to maintain a healthy lifestyle, eat well and judiciously engage in cardiofitness activities or exercises so as to improve well-being, body mass index (BMI), wellness or heart health.