Exhaust-ing ride for cyclists: Air pollutants trigger heart risk

Exhaust-ing ride for cyclists: Air pollutants trigger heart risk
http://www.environmentalhealthnews.org/ehs/news/exhaust-ing-ride-for-cyclists   

"In big cities around the world, cyclists breathe an array of pollutants from exhaust-spewing cars. A new study has now found a link between cycling on high traffic roads and heart risks. Even healthy cyclists had harmful changes in their heart rates. Experts say cyclists should stick to their two-wheels, however, pointing to simple solutions to reduce exposure."