I find this to be true. I use to live in Sacramento and I usually ran at 9:00pm, I never use to have any problem but in 1996 I started getting chest pains everytime I ran, but if I ran on a treadmill, no chest pains. This went on for a few more years until I moved to Reno, I ran and no chest pains at all. The only thing I could contribute my chest pains to, was the air quality. I think air quality plays a big role in your exercise regiment, which will probably play a role in heart attacks.

You mean it's not all second hand smoke's fault?!

You mean all the anti-smoking nazis that drive SUVs are worse for the environment and people's health than the smokers they rally against?!

Will wonders ever cease?

When i read this post i say everyone would have panics at reading this post and puts their head in an airtight bubble, the body has an amazing capacity of filtering out pollutants and free radicals. Thanks for bringing social awareness.

Heart Disease problem refer:- Heart Disease

When i read this post i say everyone would have panics at reading this post and puts their head in an airtight bubble, the body has an amazing capacity of filtering out pollutants and free radicals. Thanks for bringing social awareness.

Heart Disease problem refer:- http://www.totalhealthguide.net