You can't change I.Q. significantly for good. You can't change metabolism significantly for good. Anything you can change bigly for good?

Only what we see not what we are or whom? Only appearance, packaging? Isn't that saddening? Though I suppose if you exercise and eat right you have a better chance of staying alive longer and having that life be "better". But can you change how you perceive the world? And what you give back to it? I'm going to ask a question which you can preview. "As much as you can as long as you can however you can. Do you give or get?" Thank you for your reply Durdle and Happy Thursday to you and yours! :)