My 8 year old still holds her pee while busying herself with playingreading etc . She holds it until the very last minute , suddenly realizes somehow , and flies across the house to a toilet . She doesn ' t wet the bed at night . Is this an issue ? Assuming you ' re the expert you appear to be , haha ! <| sep |> I don ' t mean to be rude , but it ' s going to come off as rude anyway . None of your business . <| sep |> There have always been the extremely tall . A child on a farm 200 years ago having the odd egg , milk and bread achieved their genetic height . The human body isn ' t trying to make things difficult , and is enormously adaptable . Averages moved up because the outliers on the low end have mostly been eliminated The children literally starving to death , or children that spent their childhood diseased and fighting infections because of poor sanitation . EDIT The sanitation is by far the biggest contributor assuming a minimal level of nutrition . One of the great increases of the averages was during the world wars during mass shortages , quotas , etc . People were moving to cities and the number of people getting quality water improved , greatly reducing the number of outliers due to disease . What we ' re left with today are people who take average heights increased with better nutritionsanitation and extrapolate it to short people are short because of poor nutritionsanitation . No , they ' re short because evolution veers down the paths of varied heights . I ' m not trying to make a big shorttall thing here nor do I at all support the original post that can ' t believe in outliers at all if the news tells me a 4 year old has lost teeth and is 4 ' tall , I would need significant evidence to believe that ' s unbelievable , but in this case someone said my child was 4 ' at 4 , and to me that ' s an easy yes of course that ' s possible . Humans are genetically varied . It isn ' t that the kid ate whole wheat bread .