Related by context. Frequent words. (Click for all words.) 43 Surgeon General 43 smoke 42 secondhand smoke 40 smoking 39 Cigarette smoking 39 smokes 38 cigarette smoke 38 inhaling 38 Secondhand smoke 37 cigarette smoking 36 inhaling smoke 36 Inhaling 36 inhale 35 puff 35 inhales 34 inhaled 34 nicotine 34 smokeless tobacco 34 CDC Morbidity 34 nonsmoking 34 nonsmokers 34 fumes 34 huffing 34 Cigarettes 34 smoked 34 Nicotine 33 huffs 33 gum disease 33 cigarette 33 lungs 33 tobacco 33 decongestants 32 vaporizer 32 Carbon monoxide 32 Smoking 32 Quitting smoking 32 carbon monoxide 32 cigs 32 mouthwash 32 air freshener 32 Surgeon General Richard 32 breath mints 32 carcinogens 32 heart disease 32 lung disease 32 secondhand smoke exposure 31 diesel fumes 31 journal Pediatrics 31 smokes marijuana 31 smoked cannabis 31 lit cigarette 31 smoker 31 diesel exhaust 31 chronic cough 31 Prolonged exposure 31 cigarettes 31 SMOKING 31 Smoke 31 menthol cigarettes 30 die prematurely 30 passive smoking 30 fine particle pollution 30 puffing 30 vapors 30 smoking cessation 30 puffs 30 nicotine gum 30 quit smoking 30 lung cancer 30 exhales 30 nicotine addiction 29 quitting smoking 29 Medicine IOM 29 vapor 29 menthol 29 caffeine intake 29 Alcohol Abuse 29 asthma 29 unhealthful 29 mold spores 29 respiratory distress 29 respiratory tract 29 carcinogen 29 smoked marijuana 29 chronic bronchitis 29 Binge drinking 29 Internal Medicine 29 emphysema 29 halitosis 29 banning smoking 29 obese 29 nonsmoker 29 gum 29 Pediatrics 28 cigar 28 decongestant 28 snorting 28 alcoholic drink 28 harmful chemicals 28 cig 28 sweetened beverages