NETA Personal Trainer Practice Exam

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What BMI category corresponds to individuals with a BMI under 18.5?

Normal
Overweight
Underweight
Class 1 Obesity

The correct answer is: Underweight

Individuals with a Body Mass Index (BMI) under 18.5 are categorized as underweight. This classification indicates that a person's weight is significantly below what is considered healthy for their height, potentially causing various health issues such as nutritional deficiencies and increased risk of other health problems. The BMI categories are typically defined as follows: - Underweight: BMI less than 18.5 - Normal weight: BMI between 18.5 and 24.9 - Overweight: BMI between 25 and 29.9 - Obesity (which includes several classes): BMI of 30 or greater, with different classifications for severity. Being aware of these categories helps health professionals assess weight-related health risks and guide individuals toward healthier lifestyle choices. The underweight classification serves as an important alert that may require further evaluation or intervention to promote optimal health.