Here in the Philippines, there are a lot of small kiosks or stalls that sell barbecued chicken intestines (also called zigzag), pig intestines, blood of chicken which is cut into cubes (A.K.A beta max) and lots more. Its actually a common thing here in the Philippines to have those as a side dish sometimes or better yet our snack for the afternoon. I admit loving these kinds of cuisine because its delicious and cheap if your on a budget. And usually I would request the owner to have the barbecue I ordered to have it a little toasted. But since I found out that carcinogens can cause cancer, I actually refrain ordering these foods and also smoking.
smoking also produces carcinogens which can give you cancer. It not only gives you cancer but also makes you age faster. I read from a magazine before that in every stick of cigarette you smoke, four years of your life is being deducted. I don't know if that is a fact but its better to prevent yourself to experience that.
Think of it this way, I you want to slow the aging process of your body, stop or refrain from drinking too much alcohol and also smoking. I know it's hard to stop smoking nor drinking but the best way to take care of yourself is to take it in moderation.
I hope this helped you take better care for yourself.