I would explain the bad things smoking does to you and your body. Since he's still a bit young I'd be easy with him. I would probably tell a trusted adult as well.
In descending order it's the:
Fallopian Tubes
Uterus
Cervix
Vagina
Answer:
Humans have some stem cells, but those cells are not easily available to help with healing. Most other mammals are the same, so they aren't good at regeneration either. Amphibians and some fish have stem cells that are more easily available, and are usually pretty good at regeneration.
Answer:"I will always be at risk for serious infection."
Explanation:
Being a heart transplant patient myself, you will ALWAYS be at risk for infection.
A special repellent spray that gets rid of any dog odours such as pee
