A new study of the protein-coding genes in 100 breast cancer tumors revealed vast differences among the cancers and highlights how complicated the disease really is, researchers said Wednesday.

Healthy food, we’ve often heard, is pricey food. Fruits and vegetables -- they’re expensive! We can’t afford to eat that way! That’s why we don’t do it!

Asserting "we are at an exceptional moment" in the hunt for an Alzheimer'sdiseasetreatment, National Institutes of Health director Dr. Francis Collins on Tuesday promised a raft of new research aimed at stopping and reversing the memory-robbing disorder by the year 2025. In unveiling a first-ever "national strategy" on Alzheimer's disease , Collins launched several new projects and clinical trials--including a whole-genome sequencing effort to identify genes that confer vulnerability to--or protecti...

One in every 12 Americans has been diagnosed with asthma, a record high.

A drug for obesity is badly needed, but safety is a concern

A contaminated reusable grocery bag caused a norovirus outbreak that brought gastric distress to girls' soccer team.

The HBO documentary "The Weight of the Nation" examines America's obesity crisis

They sifted through about 800 programs to prevent and fight obesity --to find the ones most likely to counter the nation's growing girth. In the end, a panel of independent experts asserted that only by implementing many of those initiatives at once can t he nation make real progress.

High school students in California, where laws govern food sold on campus, ate less sugar and fat and fewer calories than students in states with no laws: study.

Probiotics (beneficial bacterial) such as those found in yogurt reduces the chances of diarrhea when taking antibiotics for infections.