I'm telling you, I'm used to hunchbacks, too. I practiced yoga for two years, stood on the wall, went to the gym and asked my colleagues to supervise me for a while. I posted a lot of things like "Are you hunched today?" I can tell you that your method won't work because it's not easy to operate. In daily life, I focus on the things and work in front of me, and posture is the most easily overlooked thing. If you are not careful, you will hunch over. When you find it,

Now I use the posture reminder recommended by others, and the effect is good. Call the little friend a wandering musical instrument. As soon as I bend over, I will remind you by vibration, so that I won't bend over and find it, and it will take a long time to wake up. Wearing it can detect reminders at any time, which is very accurate and timely, and the experience is good. I hope I can give you a constructive reference.