By INDEX Editorial Team | Based on peer-reviewed research - A sudden outbreak of itchy, raised welts can be unsettling—especially when the cause is not obvious. Hives may appear after a hot shower, using a new cleaning product, entering a…
By INDEX Editorial Team | Based on peer-reviewed research- Indoor air can feel “off” long before you see visible mold or smell anything musty. One of the quiet drivers behind that change is humidity. This article explains, in plain language…
By INDEX Editorial Team | Based on peer-reviewed research- If you're indoors reading this — and statistically, you are — you're likely breathing in something researchers are only beginning to understand: airborne microplastics. Tiny fragments of degraded plastic, many thinner…
By INDEX Editorial Team - Handwashing is usually treated as a task to complete as quickly as possible. Turn on the tap, apply soap, scrub, rinse, dry, and move on. But what if handwashing could also be a way to…
By INDEX Editorial Team | Based on peer-reviewed research - The Problem Most People Don't See Coming: Wildfire smoke doesn't need to be visible to be dangerous. By the time you smell it, fine particulate matter — classified as PM2.5,…
By INDEX Editorial Team | Based on peer-reviewed research - Part 1: The Science — How Respiratory Viruses Become and Stay Airborne What "Airborne" Actually Means When an infected person breathes, speaks, coughs, or sneezes, they release respiratory fluids in…
By INDEX Editorial Team | Based on peer-reviewed research - When people think about indoor environmental health, they often think first about air. That makes sense. Air quality matters. But many exposures do not stay neatly suspended in the air…
By INDEX Editorial Team | Based on peer-reviewed research - When a surface looks clean, is it actually clean enough to reduce hygiene risk? That question matters in homes, schools, healthcare facilities, offices, and commercial facilities. It also matters for…
By INDEX Editorial Team | Based on peer-reviewed research - If you have ever opened a bedroom door in the morning and felt the air seemed stale, or noticed a conference room gets stuffy long before a meeting ends, a…
By INDEX Editorial Team | Based on peer-reviewed research - A practical, science-first framework for travelers, facility teams, and health-conscious professionals who want better information—not guesswork—about hotel room air. When people talk about a “clean” hotel room, they usually mean…