How Poor Indoor Air Quality Impacts Sleep, Mood & Immunity

When we think about health, we often focus on nutrition, exercise, and sleep habits. But there’s another factor that quietly influences all three—the air we breathe indoors. For many people, indoor environments account for up to 90% of daily time, yet indoor air quality is frequently overlooked. Poor indoor air quality doesn’t just affect the lungs. Research increasingly shows that it can disrupt sleep quality, influence mood and mental clarity, and weaken immune defenses. Understanding how indoor air impacts these systems is an important step toward better everyday health.

3 views | Lifestyle | Submitted: February 11, 2026
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