Putting Physical Capacity in its Place: New Editorial

I wrote an editorial to accompany this article by Diana Kuh and colleagues for Circulation. The article shows that NT-proBNP levels in community-dwelling older adults predicts declining physical function. The editorial remarks on how notable it is that an article with a physical function focus was being published by Circulation, and discusses the fact that the markers evaluated by Dr. Kuh and her team are also being considered as indicators of biologic age.