Frequently basking in positive emotions defends against colds regardless of how often one experiences negative emotions, say psychologist Sheldon Cohen of Carnegie Mellon University in Pittsburgh and his colleagues. They suspect that positive emotions stimulate symptom-fighting substances.
This doesn’t sound too far fetched at all. I don’t recall the last time I was in a seriously good mood with even a headache. So there you have it… keep a good mood and you will feel better. Who would have thought?