Shocking yet true, body mass index isn't always the best indicator of a person's physical and mental health. But know what is? Asking a person if he or she thinks she should weigh less. The desire to drop pounds due to "social constructs that surround ideal body types", it turns out, is a pretty good indicator of compromised health, reports a study coming out of Columbia University. Says Peter Muennig, assistant professor of Health Policy and Management, "Younger persons, Whites, and women are disproportionately affected by negative body image concerns, and these groups unduly suffer from BMI-associated morbidity and mortality." [Science Daily]