the.com/phlegm
The body's least photogenic announcement that something is going on in there.
means The thick mucus produced in your airways, especially when a cold or infection puts your lungs in overproduction mode.
from From Greek phlegma, meaning inflammation or flame — ancient doctors blamed it on cold, wet humors despite the fiery name, one of four fluids thought to rule your mood and health.
Calm cousinPhlegmatic means unflappable, named for the same humor.
Daily outputHealthy lungs make over a liter of mucus daily.
Silent workerYou swallow most of it without noticing.
Color cluesHue hints at infection type, not severity.