@CNN: Does your workout take you by traffic-laden roads? Walking along polluted streets may reduce health benefits for older people, a new study finds https://t.co/RReniGg8ag https://t.co/TPgZvUQFlP
Does your workout take you by traffic-laden roads? Walking along polluted streets may reduce health benefits for older people, a new study finds https://t.co/RReniGg8ag http://pic.twitter.com/TPgZvUQFlP
— CNN (@CNN) December 7, 2017