Yes but an attitude adjustment can affect not just that but other well established and chronic diseases. People can literally attiude themselves to death, you c

Yes but an attitude adjustment can affect not just that but other well established and chronic diseases. People can literally attiude themselves to death, you can focus your mind enough with a death wishing attitude and you would just die, doctors will tell you that a patient with a good attitude stands a better chance at fighting any disease than a patient with a bad attitude. Your attitude is set in your brain which regulates different chemicals and hormones. When you see an attractive person you get chemicals to make your body react, when your brain thinks it's in danger you get adrenaline,etc... is it so unreasonable for depression to be at least helped or harmed (not caused) by pursuing a good attitude? Also , I like to think it isn't the attitude that is spreading but that depressed people help set an environment that cultivates depression whether by stress, lack of communication, bad communication,etc... depression wouldn't exactly be the first disease to be caused or affected by the environment a person spends their time in.