That's one point, but the doc says (and I quote):
"Now I have been a GP working amongst students in Manchester for the past 30years, and my impression is that few students try to use medical problems as excuses to gain points in their examination results. What I can say is that those with hay fever, rarely use that as an excuse for their poor exam results. In fact, hay fever should be a major consideration for those students who are sufferers!!
Indeed, research published in 2005 by the National Pollen and Aerobiology Research Unit at University College Worcester found that hay fever has a significant negative effect on student's exam performance.
Students at Cambridge University appeared to be the most affected, with 63% producing lower grades than their average on high or moderately high pollen count days. "
So it's a scientific fact or something.