A new study published in the Journal of the American Medical Association found that you don't need to exercise Monday to Friday if you're able to do at least 100 and 50 minutes of exercise on the weekend.
In the middle of a military base outside Mexico City, an army colonel runs what he calls a kindergarten for dogs. Puppies that one day will become rescue dogs, or sniffer dogs for drugs or explosives, get their basic training here, at Mexico’s Army and Air Force Canine Production Center.