>>> . . . or is loss of height an age thing?
Quote:
"Height loss is related to aging changes in the bones, muscles, and joints. People typically lose almost one-half inch (about 1 centimeter) every 10 years after age 40. Height loss is even more rapid after age 70. You may lose a total of 1 to 3 inches (2.5 to 7.5 centimeters) in height as you age."
Source:
https://medlineplus.gov/ency/article/003998.htm
I used to be about 181 cm tall but my height is typically measured at around 178cm these days. (Height measurement varies a little every day though, with one's height usually being slightly greater first thing in the morning, after sleeping, than it is later in the day. That's because gravity gradually compresses the discs in one's spine during the day, which then return to their uncompressed state while supine in bed).