Nutrition and childhood disease are key factors in determining height

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https://www.bbc.co.uk/news/health-23896855

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Quote from: Medium Drink Of Water on August 24, 2020, 03:06:37 PMVery few people are malnourished enough for it to affect their height these days.

As the maps in the following article show this is not true.  There are many countries where poor sanitation and poor diet are still restricting height.  Furthermore, as shown in the same article a number of developed nations have been dipping in height since the 70s because of the availability of cheaply produced poorer quality food - processed and fast food.
https://www.telegraph.co.uk/travel/maps-and-graphics/the-tallest-and-shortest-countries-in-the-world/

Even now we see north south divide in the UK with Scottish men now shorter than their English counterparts - previously they were taller.  More details in the following book:

https://www.amazon.co.uk/Changing-Body-Nutrition-Development-Approaches/dp/0521879752

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Whilst genetics is clearly a key factor if we look at trends in height in the last century alone there have been some staggering increase in heights and this cannot be due to genetics as genetic effects are made in tiny steps and take a much much larger timescale to be evident.  For example in the past 100 years Korean women have increased in height by 20cm, Iranian men by 16.5cm.

However, these are general trends and they don't necessarily explain why a particular individual is shorter or taller.  So there is no point getting depressed about our heights - after all the reason we are on this forum is to do something about it.  So stay positive.  The reason I have posted this information is for education.

https://ourworldindata.org/human-height#increase-of-human-height-over-two-centuries

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Quote from: football_not_soccer on August 26, 2020, 08:56:09 AMso the moral is get LL and feed your children properly so that no one suspects that you had LL done lol  otherwise they would ask if the dad is average why is the child short? 

Yes that's the spirit.  And pay particular attention to your children's growth spurts and ensure that diet, exercise and sleep is optimal during those periods.  Take a look at:
https://ourworldindata.org/human-height#how-do-expected-growth-trends-differ-for-boys-and-girls
Note the significance of nutrition in the first two years.