It gets better with age...

My younger daughter suffers from allergic bronchitis, an early stage of respiratory malfunction that can lead to the dreaded Asthma.

And I'm having a conversation with the Pulmonologist:

The Optimistic Mother: Tell me Doctor, my daughter gets better with age, right?
Doctor: Oh, yes! It does get better with age.
TOM: So, she must feel better at 7-8 years?
Doctor: Well. That's too soon. But, the lungs will be better developed to cope with weather changes and allergens.
TOM: How about the time when she turns twelve or thirteen? She'll be better then?
Doctor: Hmm...that's around puberty. So, there can be an allergic response to the fluctuating levels of new hormones in her body. That includes allergic bronchitis as well.

But, it gets better with age. 

TOM: Oh! I see. It must be the twenties then, right?
Doctor: Let's see. The twenties-thirties in a female offer multiple challenges - continued hormone fluctuations, possible miscarriages, pregnancy, postpartum phase...that may only worsen the case.
TOM: So, is it the forties-fifties then?
Doctor: That's the time when menopause hits, no? Again, the falling levels in hormones coupled with a mid-aged body system might find it hard to cope with allergic reactions in the body.

(after a pause) But, it gets better with age. 

T(not so)OM: So, does the recovery happen around sixties or later?
Doctor: But, as we grow old, we experience a natural decrease in lung function. And the reduced immunity in the body finds it difficult to stop the respiratory viruses such as colds or the flu from attacking it. This can actually worsen the problem.

(pause again) But, it gets better with age, you see...