As of 2016, 40 percent of adults (that’s nearing half the world population) and almost 20 percent of kids worldwide are overweight or clinically obese.

Your instructor wields some hefty power with the words he or she delivers to motivate you. Find out how instructor’s comments can impact your self-esteem.

Researchers have found that people who let their weight cycle up and down may have higher mortality risks. Find out how to sustain long term weight loss.

Does your dieting feel like a merry-go-round that you can’t get off? Find out how your gut microbiome might be causing your yo-yo weight phenomenon.

What if a test could predict how well bariatric surgery would help you lose weight? Learn about these four obesity subtypes and what they can tell you.

If you're morbidly obese, X-rays require more radiation than for normal-weight people, and that slightly increases your risk of cancer, according to this study.

If you have prediabetes or type 2 diabetes, pay attention to this study that discovered this weight loss drug can lower your blood sugar and diabetes risk.

Bariatric surgery complications may be more common for obese people who have experienced childhood physical or sexual abuse, according to this study.

Americans who make less money generally have higher rates of obesity, but the outcomes also differ between men and women. Here's what we know.

Could reducing childhood obesity also help reduce rates of childhood asthma? These researchers say it could.