when a smoker quits, what is one of the most immediate effects?

Exposure to secondhand smoke raises the risk -- by as much as 30 percent -- that others will get ...

Secondhand smoke is the smoke that you exhale plus the "sidestream" smoke created by the lit end ...

Secondhand smoke is the combination of smoke from the burning end of a cigarette and the smoke br...

Secondhand smoke (SHS) is also called environmental tobacco smoke (ETS). It's a mixture of 2 form...

Secondhand smoke is the combination of smoke from the burning end of a cigarette and the smoke br...