Second-hand smoke is more harmful than you probably thought.
Here’s a short quiz to test your knowledge of it.
#1. Second-hand smoke is smoke breathed in from other people's tobacco
#2. The harmful particles in second-hand smoke are invisible and odourless
#3. Second-hand smoke is the major cause of lung cancer in non-smokers
#4. Weekly exposure to second-hand smoke is not so harmful
#5. It is safe to inhale the vapour from electronic cigarettes
#6. It takes about 5 years for the lungs to heal from the damage caused cigarettes toxins
Suggested Reading: Second-hand Smoke: What you need to know