Building muscle is the one of the most important things you can do metabolically, and it doesn’t matter how old you are, you got to get stronger! Muscle is key, and a new study has found the importance of muscle in preventing chronic disease. Dr. Martin says with all the research coming together, muscle mass should be viewed as an important vital sign. The number one cause of disability in older adults is sarcopenia, which is muscle wasting. Join Dr. Martin as he shares several studies on muscle strength, and even one on salt and its connection to insulin resistance.