BMI introduction
Body Mass Index (BMI) is a widely used measure that relates a person’s weight to their height to estimate whether they are underweight, normal weight, overweight, or obese. While not a perfect tool, BMI is a simple way to screen for potential weight-related health concerns.
Why BMI Matters?
BMI helps indicate whether a person’s body weight is in a range that may affect their health. Both being underweight and overweight carry significant risks.
Risks of Being Overweight
High blood pressure
High cholesterol and triglycerides
Type 2 diabetes
Heart disease and stroke
Gallbladder disease
Osteoarthritis
Breathing problems such as sleep apnea
Certain cancers (breast, colon, kidney, liver, etc.)
Lower quality of life and increased risk of premature death
Risks of Being Underweight
Malnutrition and vitamin deficiencies
Anemia (low red blood cell count)
Osteoporosis (weak bones)
Reduced immune function
Growth and development issues in children and teens
Fertility and pregnancy complications in women
Higher surgical and recovery risks
Increased risk of mortality
Limitations of BMI !
Although BMI is a useful general indicator, it does not directly measure body fat or take body composition into account.
Adults: Athletes may have a high BMI due to muscle mass, not fat. Women and older adults naturally carry more body fat than men and younger adults at the same BMI.
Children & adolescents: BMI values differ with age and sex. Growth and development make BMI interpretation more complex, and percentiles are used instead of fixed cutoffs.
For most people, BMI is fairly accurate, but it should always be considered alongside other factors like diet, activity level, and medical history.