Related by context. Frequent words. (Click for all words.) 74 smoking 63 secondhand smoke 62 smokers 61 passive smoking 59 Smoking 58 tobacco 54 cigarette 54 obesity 54 smoker 53 smokes 53 smokeless tobacco 53 heart disease 52 cigarette smoke 52 binge drinking 52 cigarettes 50 nonsmokers 50 smoking bans 50 lung cancer 49 quitting smoking 49 chewing tobacco 48 sedentary lifestyle 48 indoor tanning 48 cardiovascular disease 48 coronary heart 47 Cigarette 47 quit smoking 47 vitamin D deficiency 47 diet soda 47 smoked 47 salt intake 46 nicotine 46 gum disease 46 obese 46 COPD 46 smoke 45 metabolic syndrome 45 periodontal disease 45 Cigarettes 44 puffing 44 banning smoking 44 prevalence 44 cancers 43 nonsmoking 43 index BMI 43 carcinogens 43 emphysema 43 obesity epidemic 42 harmful effects 42 colorectal cancer 42 adolescents 42 Surgeon General 42 boozing 42 fatty foods 42 childhood obesity 42 air pollution 42 hypertension 42 lung function 42 Smokers 41 Lung cancer 41 sugary drinks 41 cardiovascular diseases 41 post menopausal 41 Obesity 41 atherosclerosis 41 smoking cessation 41 overweight 41 drinking 41 Tobacco Control 41 preterm birth 40 aspartame 40 NSAIDs 40 lung disease 40 coronary artery disease 40 carcinogen 40 waist circumference 40 smoking ban 40 breast cancers 40 tanning beds 40 alcohol 39 genetic predisposition 39 tooth decay 39 breastfeeding 39 asbestos exposure 39 oral contraceptives 39 diabetes mellitus 39 Tobacco 39 cigar 39 cirrhosis 39 insulin resistance 39 trans fats 39 statin 39 cognitive impairment 39 hospitalizations 39 HPV 38 skin cancers 38 statins 38 alcoholism 38 asthma 38 malignancy 38 sedentary 38 NSAID