If you could create a painless, inexpensive cure for a single ailment, what would you cure and why?

Since we are making fantasy wishes then for this one, that is if I could create a painless inexpensive cure for a single ailment, then I would choose cancer – all kinds of cancer. Cancer is a dirty bastard of a disease in that it starts in you mostly undetected and by the time the signs show usually it has already grown a bit. In some cases the detection is too late for you to operate that you have no choice but to go through chemo-therapy and go through that ordeal which is taxing on the human body and human spirit. Young children and the aged suffer terribly through the treatment. In some cases they are unable to operate and sometimes that means sure death. And cancer is so strong that because of the duration and the toll it takes, both emotionally & physically, not just the patient but his or her whole family also suffers through it. Patient is one but victims are more.

If not a disease or ailment can I include old age? Seeing people age and the effect that it takes on you. I would never want to be so old that I need someone to take care of me, feed me, clothe me and bathe me. Hard to feel like an adult when you can’t even control your bowel movements. And can’t go out to enjoy a simple, nice evening ad enjoy the outside air. No sir I would want to die before that happens to me. So if I could create a cure to ease up the effects of old age that would be something I’d choose as well.

Both cases, for humans and animals. Dogs & cats.