To make a building healthier, stop sanitizing everything

If we want people to be healthy and productive, let's tend to the microbiome. Most of the people in the Western world spends up to 90% of their time indoors, and even before the coronavirus pandemic, some scientists were deeply concerned about this complete disconnection from the outdoors, that may also be linked to "a host of chronic health problems." So, what can be done to change these notions? Caroline Winter investigates in Bloomberg Businessweek.