The #DoYourAge Fitness Challenge

Plus why you feel stiff in the morning, and how physical activity can lower Alzheimer's risk

Welcome back to Age Wise, your weekly update on the science of physical health and mental wellness at every stage of life. Here’s what’s new and interesting:

As we slide into middle age and beyond, setting motivational fitness goals gets tricky, since we know we'll never be as strong or as fast as we once were. In my new article on Medium, I propose a so…