Related by context. Frequent words. (Click for all words.) 62 COPD 59 chronic obstructive pulmonary 59 asthma 58 chronic lung 57 disease COPD 56 chronic cough 53 lung diseases 52 sinusitis 52 respiratory infections 51 respiratory tract infections 51 pulmonary disease 51 cardiovascular disease CVD 50 chronic respiratory 50 gastroesophageal reflux disease 50 Cardiovascular disease 50 lung disease 50 allergic rhinitis 49 obstructive sleep apnea 49 sleep disordered breathing 49 hypertension 49 respiratory 49 angina 49 sleep apnea 49 persistent cough 49 nasal congestion 48 idiopathic 48 GERD 48 allergic asthma 48 emphysema 47 bronchitis 47 respiratory diseases 47 rheumatoid arthritis 47 chronic 47 vascular dementia 47 respiratory symptoms 47 Sleep apnea 47 eczema 47 respiratory illnesses 46 acid reflux 46 Rheumatoid arthritis 46 stuffy nose 46 wheezing 46 gastrointestinal symptoms 46 hay fever 46 cardiovascular disease 45 gum disease 45 lung function 45 diabetes mellitus 45 respiratory illness 45 coronary heart 45 upper respiratory tract 45 coronary artery disease 45 psoriasis 45 metabolic syndrome 45 lung infections 45 inflammatory bowel disease 45 Chronic Obstructive Pulmonary Disease 44 heart disease 44 sinus infections 44 coronary disease 44 pulmonary hypertension 44 cirrhosis 44 runny nose 44 gout 44 dyspnea 43 deep vein thrombosis 43 Atrial fibrillation 43 apnea 43 respiratory ailments 43 Cystic fibrosis 43 restless legs 43 asthmatics 43 Colorectal cancer 43 pneumonia 43 migraines 43 allergies 43 daytime sleepiness 43 irritable bowel syndrome 43 periodontal disease 43 Secondhand smoke 43 abdominal obesity 43 migraine 43 syncope 43 unstable angina 43 schizophrenia 43 hypertension diabetes 43 passive smoking 43 liver cirrhosis 43 respiratory tract 43 chronic diseases 43 hypothyroidism 43 Cigarette smoking 43 sleep disorders 42 exacerbations 42 cardiovascular diseases 42 dyslipidemia 42 bronchial 42 ear infections 42 rheumatoid arthritis RA 42 chronic illnesses 42 dementias