Final answer:
The currently most used technique to screen for overweight and obesity is the body mass index (BMI), which is calculated using height and weight measurements. BMI is a useful tool to categorize people and is highly correlative with disease risk.
Step-by-step explanation:
The currently most used technique to screen for overweight and obesity is the body mass index (BMI). BMI is calculated using height and weight measurements and is more predictive of body fatness than weight alone. It is a useful tool to categorize people and is highly correlative with disease risk. However, BMI has limitations and does not take into account important factors like fat mass and distribution.