Secondhand smoke causes headaches, nausea and irritates the eye, nose and throat.

Not to mention heart attacks and cancer, killing Nebraskans.

It puts carbon monoxide in the air.

That's according to an ad released this week by Columbus Christian School and Tobacco Free Platte County.

The spot is one of four spots produced as a result of a contest by Tobacco Free Platte County and Tobacco Free Colfax County. The contest recognizes Kick Butts Day, a national day sponsored by the Campaign for Tobacco Free Kids. This is the 16th annual Kick Butts Day. The day is a national day designed to promote tobacco free kids.

The ads are being aired this week in the Columbus and Central City, Nebraska, areas.