Mental Health Walking Cognitive Function Types of Exercise Cardiovascular Health Mental Well-being Moderate Exercise Strength Training Sleep Quality Stair Climbing Dementia Prevention Recreational Activities Gender-Specific Recommendations Neurogenesis Walking Benefits Respiratory Muscle Training Cholesterol Reduction Outdoor Activities Health Improvement Stress Reduction Bone Health Fall Prevention Step Count Disease Prevention Sedentary Lifestyle Exercise Recommendations Circulation Improvement Health Risks Mental Health Improvement Mortality Risk Blood Pressure Management Movement in the Workplace Guidelines
A BMC Medicine review of more than 1.5 million adults pinpoints PM2.5 thresholds—25 and 35 μg/m³—at which the reduction in all‑cause mortality shrinks.