That may be good news for some, but not all weight issues are created equal. Some groups still have a better chance of packing on the pounds than others. (The CDC considers adults overweight if their body mass index, or BMI, is between 25–29.9, and obese if it's above 30.) Here are some factors that influence weight.
Men and women have obvious biological differences, but they're not a factor when it comes to weight. Historically, women have been fatter than men, but that gap is narrowing. According to a November 2007 NCHS report, 33.3% of men and 35.3% of women were obese in 2005–2006.
“Men have been catching up to women,” says Cynthia Ogden, a CDC epidemiologist and the lead author of the study. “There aren’t significant differences anymore.”