University of Michigan (Michigan, USA) scientists reveal that not only can we fight the battle of strength and muscle loss as we age, we can even build muscle and strength well into seniorhood.  "Resistance exercise is a great way to increase lean muscle tissue and strength capacity so that people can function more readily in daily life," says Mark Peterson, from the University of Michigan Physical Activity and Exercise Intervention Research Laboratory, explaining that: "Our analyses of current research show that the most important factor in somebody's function is their strength capacity. No matter what age an individual is, they can experience significant strength improvement with progressive resistance exercise even into the eighth and ninth decades of life.”