Bone Density - Not mine

A friend of mine has just been informed that she is firmly situated in the danger zone for low bone density. She is in her mid-40s and was not expecting this. They wanted her to go immediately to obtain her handicapped parking tag in order to eliminate those long, dangerous walks across parking lots. They've told her not to lift anything heavier than 8 pounds (one of her cats weighs 13 pounds - Bello's kitten, Norbert). She has been given a variety of prescriptions and will really take them. She is not cancelling next week's ski trip. She's an adult, its her risk to take.