National Geographic
January 17, 2025 at 02:04 PM
Even after we beat a cold or the flu, it’s not unusual to continue coughing for weeks—why does this symptom persist even when we’re not sick anymore? Scientists are still trying to explain our stubborn coughs, but one theory suggests that viral exposure makes receptors in our airways overly sensitive for a time after sickness.
https://on.natgeo.com/3DZi61U
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