Health & Mindset

Why you should think about tossing your 10k-step goal out the window

You might be surprised to know the 10,000 number is not from a scientific study. It’s based on a marketing campaign, done more than 50 years ago, explains NBC News Health editor Dr. Madelyn Fernstrom.

"Morning Joe" co-host and Know Your Value founder Mika Brzezinski says she took a year off from running to focus on the health of her mind.Anthony Scutro/Miller Hawkins

Madelyn Fernstrom, PhD

Madelyn Fernstrom, Ph.D., is the Diet and Nutrition editor for TODAY.  Fernstrom is a professor of psychiatry, epidemiology and surgery at the University of Pittsburgh Medical Center and a board certified nutrition specialist from the American College of Nutrition. She is the founding director of the UPMC Weight Management Center.