Evidence now suggests that most colds are caused by an interaction of exposure to the virus and

Question

Quizplus · Accepted Answer

Stress weakens the immune system, making a person more susceptible to catching a cold after exposure to the virus. While diet and sleep can also impact the immune system, the evidence suggests that stress is a stronger factor in causing colds. White blood count may be affected by a cold, but it is not a factor in causing the cold itself.

Evidence Now Suggests That Most Colds Are Caused by an Interaction