It is 2:00 PM on a Thursday, and you feel it—that sharp, electric twinge between your shoulder blades that eventually numbs your lower back. You’ve been working from your dining room chair for three...

You’ve just finished a heavy-duty bathroom scrub, the tiles are sparkling, but your eyes are stinging and your throat feels like you’ve swallowed a desert’s worth of sand. Those “industrial strength” fumes lingering in...