we will expain. >>> and coffee lovers may have found the fountain of youth.orning cup may help you live longer. . >> you want to Ñ-eat hepvqhy b think it's to expensive. a new study says that's not true. researchers looked at foods three weighs, the price for calories per edible gram and per average portion. it shows that carrots, onions, pindo bean are all cheaper for portion than ice cream, pork chops and ground beef. foods rich in protein and food high in fat, sugars and is the jump were all more expensive than fruits, vegetables, dairy and grains. >>> in our medical minute we have good news if you like coffee, it seems it may help you live longer. here is tim though think johnson. >> reporter: it may be a good reason to get another cup. researchers for the national cancer institute studied 400,000 adults, between 50 and 71 years old. they found that those who drank three or for cups of coffee a day have approximately a 10% lower risk of death than noncoffee drink drinkers, those who drink coffee are less likely to die from heart disease, breathing seize d