[midoridensha]

Completely false. Lots of people in their 20s have knee and back problems. Torn ACLs are common in athletes and people who participate in sports. I had a coworker a few years ago who had his ACL replaced; he was in his mid-to-late 20s.

[notshift]

Please re-read and reconsider the context of my post. This reddit-tier "must seek to contradict and attack others" behavior doesn't do anyone any good.

[midoridensha]

Ok, fine. I re-read it, and it says: "You only get knee and back problems when you're old, which is because..."

Your statement is blatantly false. It says, literally, you only get knee and back problems when you're old. This is wrong, and stupid.

Why are you arguing this?