system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why are back problems much more common in young people/at a young age nowadays?
gpt
A lot more seated positions and technology requiring a forward posture, which gets exacerbated over time(slouching). The illiopsoas muscles are fairly big contributors.

If you understand that every time your muscle contracts, it will get better at that action(such as working out) and the longer it stays in that position, the more it will solidify that position as 'normal'.

The psoas is very contracted while seated and it attaches the front of your spine to the front of your legs. When you try and stand, this pulls on the low back and causes pain and discomfort in those areas. Other people might experience it as hip pain as it crosses that joint as well.