Actually I can speak to this a bit, since my career is in immunology, ha ha. Finally- a way to fit in! yessssssssssssssssss

all right then. The reason older folk sometimes pick up allergies they didnt have as youngsters is simply, the immune system begins to slowly fail, the older we get. That's also why older folk are more vulnerable on the whole to influenza and pneumococcus (bacterial pneumonia causing germs).

Toss me a cracker, will you?