I forever struggled with my standing posture. I always had to put thought into it. Do I keep my shoulders all the way back? Do I suck in my stomach? How much? A

I forever struggled with my standing posture. I always had to put thought into it. Do I keep my shoulders all the way back? Do I suck in my stomach? How much? And because of all the mental load and muscular effort, I'd get tired very soon and over the course of a day, go back to slouching. Recently I came across Phenibut. The first time I tired it, something happened that had never before: all my muscles were relaxed. Suddenly it felt natural and so easy to stand straight up with zero mental awareness at the time. And in a few days, I "learnt" what my problem was. I was tensing my chest and ab muscles all my life! That was a major beneficial side effect of Phenibut for me. Might work for others too.