Humans, well life in general, is pretty damn robust. That said maybe studies haven't picked this up cause the real negative effect is when you're old and demen

Humans, well life in general, is pretty damn robust. That said maybe studies haven't picked this up cause the real negative effect is when you're old and demented they put you in the cheapest home. Where the staff let you cry it out if you fall and break your hip in the night. Who the hell knows? Or will ever know.