negativism sure sucks you down

First the cold cloggs your nose, your chest and any hole you seem to have above the belly button. Then it warms up, your cold vanishes and you think, swell, no more cold. But with Spring comes the moisture and ALLERGY season, so your nose is tickling you to insanity, your tongue swells, ears itch, eyes water.
Now, one should do a nice survey looking into the correlation of negativity and stress to allergies, maybe even do a study on the effect of stress on colds. But I am sure it has been done and proven.