When dogs become "senior citizens," usually around the age of 7 or so, their joints don't have as much flexibility as they once did. This means that when your dog jumps down from furniture, leaps to a favorite resting spot, or climbs up stairs, they run the risk of damage to their backs and hips. The same holds true for puppies; a young dog's joints are still forming and can be traumatized by too much jumping and climbing. One way to alleviate the problem is to provide a ramp or steps for your dog. You'll find ramps and steps at some pet stores and online pet suppliers. To train your pets to use the device, lure them onto it with some treats until they feel secure. Once they use it successfully, offer a few small treats at one time and ample praise.
Get more information at puppystairs.com.