Goes for kids at any age really if they have health problems. My parents' daily tracking of my siblings' asthma status was crucial to get them good care when we

Goes for kids at any age really if they have health problems. My parents' daily tracking of my siblings' asthma status was crucial to get them good care when we were growing up. Both for analysis by the specialists and daily by my parents. Being able to confidently predict "it looks like he will have a cold in one or two days, let's increase his dose and preempt it" based on PEF (peak expiratory flow) measurement done morning and evening was such a boon. Also being able to confidently identify patterns like "he always gets worse when we do X". We did it with pen and paper, but today of course there's an app for that: https://www.spirometry.com/eng/products/smartone.asp https://www.spirometry.com/eng/products/smartone.asp