I was in China for three trips of one-month each in 2016, as a chemistry advisor at a couple of their nuclear power sites.
Because nuclear fuel was present, China requires a military presence at their sites.
My impression is that their soldiers were very scrawny...their heights probably averaged 5'9" (my height), and weight averaged maybe 140 lbs (less than my weight). And everyone, I mean everyone, has a bad complexion.
Once...I was walking between buildings, looking down so I wouldn't trip on the uneven pavement...I accidently walked right in front of a squad that was jogging. I made them all stop...for a second, I felt like the Tiananmen Square guy in front of a line of tanks.
I am under the belief that the men are all scrawny because of the terrible air and water pollution. Most food cannot be eaten raw because it is loaded with typhoid, and there are no controls on the consumption of heavy metals. I know I came back 20 lbs lighter.