Related by context. Frequent words. (Click for all words.) 70 respiratory ailments 68 lung diseases 67 respiratory illnesses 65 lung disease 59 respiratory diseases 57 respiratory 56 breathing difficulties 54 chronic lung 54 asbestosis 54 ailments 54 emphysema 53 illnesses 52 respiratory illness 50 respiratory symptoms 50 lung 50 respiratory infections 50 asthma 50 secondhand smoke 49 chronic illnesses 48 liver disease 48 heart disease 48 asbestos exposure 48 kidney disease 48 pneumonia 47 air pollution 46 skin rashes 46 bronchitis 46 kidney failure 46 sicknesses 45 chronic bronchitis 44 lung cancer 44 viral infections 44 carbon monoxide poisoning 44 allergies 44 chronic obstructive pulmonary 44 deep vein thrombosis 44 lung infection 44 chronic diseases 44 sinusitis 43 respiratory distress 43 asthmatics 43 cigarette smoke 43 toxic fumes 43 migraines 43 asthmatic 43 sleep apnea 43 cardiovascular disease 43 passive smoking 43 pulmonary fibrosis 42 complications 42 smog 42 diesel exhaust 42 carpal tunnel syndrome 42 inhaling 42 diseases 42 pancreatitis 42 pollutants 42 blood clots 42 cardiovascular diseases 42 clogged arteries 42 mesothelioma 42 disease COPD 42 renal failure 42 toxins 42 compromised immune 41 coronary artery disease 41 carbon monoxide 41 cirrhosis 41 respiratory infection 41 renal disease 41 congestive heart failure 41 coronary disease 41 heat exhaustion 41 sudden cardiac death 41 lungs 41 cancers 41 maladies 41 particle pollution 41 obstructive sleep apnea 40 toxic gases 40 weakened immune systems 40 organ failure 40 COPD 40 arthritis 40 hay fever 40 rashes 40 poisoning 40 sore throats 40 birth defects 40 ulcers 40 nosebleeds 40 hypertension 40 carcinogens 40 particulate matter 40 colds 40 kidney stones 40 particulates 39 varicose veins 39 ear infections 39 heatstroke 39 chronic fatigue