Definition of Obesity

Obesity

Obesity refers to being significantly above one's typical weight. Traditionally, an individual is considered obese if they exceed 20 percent over their ideal weight, which should consider their height, age, gender, and body type. The National Institutes of Health (NIH) has more precisely defined obesity as having a Body Mass Index (BMI) of 30 or higher. A BMI of 30 equates to being roughly 30 pounds over one's ideal weight.The BMI, a crucial measure that relates body weight to height, is calculated by dividing a person's weight in kilograms by the square of their height in meters. Since BMI reflects body weight in relation to height, it is a strong indicator (in adults) of total body fat. However, some muscular individuals may show a high BMI without facing significant health risks.Obesity is commonly influenced by both genetic and behavioral factors. Therefore, addressing obesity typically requires more than just dietary adjustments. Exercise, counseling, support, and sometimes medication can complement diet changes to help individuals overcome weight challenges. Conversely, extreme dieting can actually lead to more severe obesity.Being overweight significantly contributes to health issues and elevates the risk of various diseases, such as:- Type 2 diabetes- Hypertension (high blood pressure)- Coronary artery disease (CAD) or myocardial infarction (heart attack)- Stroke- Certain cancers, including breast and colon cancer- Gallbladder disease- Osteoarthritis (degenerative joint disease) in the knees, hips, and lower back- Sleep apnea (breathing interruptions during sleep, leading to low blood oxygen levels)- Pickwickian syndrome (characterized by obesity, a flushed face, shortness of breath, and drowsiness).

CPR Certification Labs provides hands-on, American Heart Association–aligned CPR, BLS, ACLS, and PALS certification training to help providers master these life-saving skills.

Medical Definition & Meaning

Get your AHA BLS, ACLS, and PALS Provider Certification today

Get your AHA BLS, ACLS, and PALS Provider Certification today

CPR Certification Labs has multiple classes available every day

Choose a course

What the AHA CPR Certification Course Includes

Comprehensive CPR Training for Adults, Children, and Infants

Our technology delivers immediate, actionable feedback that refines your skills in real time.

Proper Use of AED Devices for All Age Groups

Understand how to safely and effectively operate an Automated External Defibrillator (AED) for adults, children, and infants.

Airway Obstruction Relief and Heimlich Maneuver

Learn how to perform the Heimlich maneuver and clear airway obstructions caused by choking in both adults and infants.

Team-Based Multi-Rescuer CPR Techniques

Gain experience working as part of a team when more than one rescuer is available during an emergency.

Official American Heart Association CPR E-Card

Receive your AHA CPR Certification E-Card on the same day you complete the class and pass the exam.

Get your AHA BLS, ACLS, and PALS Provider Certification today

Local news