Walk around Minnesota and you’ll hear that low, purring hum of the air conditioning. However, you may also hear the sound of sneezing and coughing — the sound of the summer cold. So, does all our exposure to air conditioning cause summer colds?
It has the runny nose, the persistent cough and the watery eyes. The only common thing about the common cold is what a common pain in the — everything — it is. But with a billion instances of the cold in the U.S. every year, why haven’t scientists found a cure?