“decreased” • Air • Alcohol • Asthma • Athletic • Blood • Brain • Bronchitis • Cognitive • Collapse • Consequence • Creativity • Crop • Damage • Drinking • Ecosystem • Educational • Effect • Headaches • Health • Impact • Important • Improve • Injury • Kidney • Levels • Loneliness • Mental • Muscle • Outcomes • Oxygen • Performance • Physical • Pollution • Poor • Pressure • Production • Rainfall • Reading • Resources • Respiratory • Salaries • Shortness • Stress • Unchanged • Was • Water • Were • Worse • Worsened