Final answer:
Mortality significantly increases when body weight exceeds ideal weight by 20%, categorizing an individual as obese. Overweight is defined by a BMI between 25 and 29.9, and morbid obesity is indicated by a BMI over 40, which carries a high risk of health complications and death. Therefore, the correct option is 2.
Step-by-step explanation:
Mortality is definitely associated with overweight when body weight exceeds ideal weight by 20%. According to health standards, being overweight is defined by having a body mass index (BMI) between 25 and 29.9. Obesity is having a BMI of 30 or higher and is associated with increased mortality and health risks such as type 2 diabetes, high blood pressure, and certain types of cancer. Morbid obesity, which is linked to a significantly higher risk of death, is defined as having a BMI over 40.
In the context of the question asked, a student would have to be at least 20% heavier than their healthy weight range to be considered obese and at a higher risk of morbidity. It's crucial to understand that obesity is a preventable condition influenced by lifestyle factors such as diet and physical activity. The classification of obesity into categories such as 'overweight', 'obese', and 'morbidly obese' helps medical professionals identify the health risks associated with excess body weight.