Please put this in the right forum, if this is the wrong one. I'm a skeptical man, not religious nor spiritual. Now, I've heard of the placebo effect. I hear that painful emotions (such as being dumped) that cause 'heart-ache' can actually weaken a heart. Now for example, I have a small cut on my arm. Will it heal faster if I have positive feelings and feel strong of mind and body? And slower if I feel very down, negative and weak?