We all have by our parents, and they were wrong. A 45° angle is ideal because your spine isn’t being compressesed by gravity as much. Just think about it. It doesn’t take a genius to figure out simple physics.
FWIW, I did have a source, but unfortunately I can’t find it at the moment.
Yes you need to tilt your seat up. I’m a fatass and do it. So can you.
But sitting up straight is bad for posture. It compresses your back, which makes the pain worse.
What kind of crack is that? Nobody has ever been told to lean back in a chair. I have however been told to sit up straight.
We all have by our parents, and they were wrong. A 45° angle is ideal because your spine isn’t being compressesed by gravity as much. Just think about it. It doesn’t take a genius to figure out simple physics.
FWIW, I did have a source, but unfortunately I can’t find it at the moment.