By Andrew P. McCoy and Fred Sargent
Published On Apr 15, 2021

By the age of 60, you’ve spent 54 years of your life inside buildings.

Some of your fondest memories may be of great times outdoors. Nonetheless, researchers tell us that you’ve spent 90% of your life between four walls.

Worse yet, in that ominous 90% of your life, you will have been submerged in a succession of unhealthy environments with bad air, questionable water quality and a multitude of other potentially harmful substances. That’s what Harvard University experts Joseph G. Allen and John D. Macomber tell us in their 2020 book, “Healthy Buildings: How Indoor Spaces Drive Performance and Productivity.”