No, I'm not channeling your mother/teacher (old school only).  Good posture really is its own reward -
you will look and feel SO much better.  Still, insidious forces are at work, destabilizing and misaligning
your body, which on the other hand are keeping countless chiropractors and physical therapists busy.
And we call those forces by many names: computers, desks, chairs, inattention, repetitive motions, etc.

Yes, the world is a dangerous place if you partake of the modern lifestyle, and as you're reading this email
I'm guessing you fall into that category, unless someone printed it out and bestowed it on you.

So here's a really cool exercise that I used to retrain my back to prefer good posture, ...