Can Cold Weather Make You Ill?
Rhinoviruses, the viruses that cause more than half of all colds, spread more easily in lower temperatures, and exposure to cold and dry air may adversely impact your body’s immune system. Rhinoviruses can also cause more severe illnesses, such as bronchitis and pneumonia, in people with weakened immune systems. Research suggests that temperatures below 37oC may allow rhinoviruses to replicate more efficiently.
