sleep apnea

Johns Hopkins engineers have developed a method to prevent harmful viruses from entering the lungs, blocking the spread of COVID-19 and influenza with a nasal spray
A nasal spray for sleep apnea?
via Wikipedia A nasal spray for sleep apnea? A drug in development for obstructive sleep
Monitoring vital signs wirelessly with radar

A radar system developed at the University of Waterloo can wirelessly monitor the vital signs