The Secret to a Long, Healthy Life Just Might Come in a Carton

(Image credit: Adrienne Breaux) As a society, we'll probably always be searching for the secret to a longer, healthier life, and new studies pop up all the time. But the latest research shows that the answer might already in a carton in your fridge right now--or at the very least, you can get them by the dozen for a few dollars at your local grocery store.