Original post: September 16, 2010 Physical exercise is crucial for health maintenance and youth preservation for both human and animal members of the family. Research shows with irrefutable evidence, that maintaining the muscle mass with regular resistance training and conditioning the cardiovascular system with a brisk walk or light run supports longevity and quality of life. Use it or lose it. The old cliché, ‘use it or lose it’ definitely fits when it comes to muscle stren