Equivalent Melanopic Lux (EML)>>>
Equivalent Melanopic Lux (EML) is a metric used in lighting design to measure how much a light source stimulates the human biological clock, rather than just how bright it looks to the human eye. While traditional "lux" measures the light…
Indoor Humidity>>>
By INDEX Editorial Team | Based on peer-reviewed research ─ Indoor humidity is one of the most overlooked parts of indoor environmental quality. Many people notice the symptoms before they notice the cause: dry eyes, scratchy throat, static shocks, condensation…
Chemical Exposure and Skin Contact>>>
By the INDEX Editorial Team | Based on peer-reviewed research ─ If your hands feel dry, itchy, red, or irritated after cleaning, handling products, or working around solvents, detergents, or building materials, you are not imagining the connection. Skin contact…
Indoor Environmental Pollutants and Cancer>>>
By INDEX Editorial Team | Based on peer-reviewed research — Americans spend most of their time indoors. That simple fact matters because the air and materials inside homes, schools, and workplaces can contain pollutants with meaningful health implications over time…
HEAL Handbook: Architecture and Design for Healthy Schools (Podcast)>>>
Architecture and Design for Healthy Schools — Based on The HEAL Handbook, written by associates of INDEX, its Indoor Health Council, and DAG Architects — About the HEAL Handbook (HH) — HH provides a comprehensive framework for designing educational facilities…
Seasonal Affective Disorder (SAD) and Light Therapy>>>
By INDEX Editorial Team | Based on peer-reviewed research - Why winter lighting can change how you feel - If your mood reliably dips when days get shorter, you are not imagining it. Seasonal affective disorder (SAD) is a form…
Office Air Quality and Employee Productivity>>>
By INDEX Editorial Team | Based on peer-reviewed research - Why this matters for HR, facilities, and leadership - If your teams are tired, unfocused, or frequently out sick, you may look first at workload, culture, or compensation. Increasingly, research…
Seasonal Affective Disorder and Indoor Lighting>>>
By INDEX Editorial Team | Based on peer-reviewed research - If your mood drops every fall or winter, you feel more tired, and it’s harder to get going in the morning, you’re not imagining it. Seasonal affective disorder (SAD) is…
Office Air Quality and Employee Productivity>>>
By INDEX Editorial Team | Based on peer-reviewed research - Why So Many Offices Feel “Off” - And Why It Matters - If people in your building complain about headaches, brain fog, or feeling tired by mid-afternoon, it’s easy to…