101 Fun Facts About the Brain and Behavior, According to Science
Source: PsyPostYou are sniffing right now. On top of each ordinary breath, you take roughly 240 extra small inhalations an hour, sampling the air without any idea you're doing it. We know because people born without a sense of smell don't—and put a normal smeller in an odorless room, and the habit fades within the hour. That's one of 101 findings below, all from peer-reviewed research. And it's not even the strangest one.