I've noticed when I don't speak to people for very long my mind becomes less active, almost switches off. I lack inspiration or life. Solitary confinement must

I've noticed when I don't speak to people for very long my mind becomes less active, almost switches off. I lack inspiration or life. Solitary confinement must be the worst torture, I can't bear to imagine it. Yet it is used around the world as standard practice, in the USA, Israel, all over!