The first woman to complete the Boston Marathon is now 78 and runs most days. She shared 3 tips for getting fit at any age.

Source: Business Insider

In 1967, Kathrine Switzer became the first woman to officially run the Boston Marathon. A race official tried to stop her (right). Kathrine Switzer/GALE PartnersThe first woman officially ran the Boston Marathon in 1967, despite an official trying to stop her.