It is the time of year for lazy, hazy days... some hazier than others.
Ozone is back as summer approaches. And the people most affected are those who spend a lot of time outdoors, especially exercising. Ozone and other pollutants can narrow and irritate the lining of the lungs, making it harder to breathe.
On days when there's a lot of pollution, there are some people who shouldn't venture outside at all.
"[People with] asthma or obstructive lung disease or emphysema who already have inflamed or irritated airways, they are particularily susceptible to the irritation effects of ozone."
Tips to reduce ozone:
1. Drive your car in the evening hours... take the bus or ride a bike during the daytime.
2. Fill up your gas tank in the evening hours.