Men's fitness at mid-iife is
a cancer-preventive
Scientists at Duke Medicine report that men who maintain a high level of fitness throughout midlife have about a third less risk of dying from certain cancers after age 65. The study followed 14,000 men from 1971 to 2009.
Fitness was measured using treadmill tests. Those with the highest levels of cardiorespiratory fitness lowered their risk of lung cancer by 55 percent and their risk of colorectal cancer by 44 percent.
The study was presented on JAMA Oncology online in March, 2015.