In many cases, the relationship between broken laws and sickness is obvious. A man who commits fornication not only sins against God, but against himself. His action may result in acquiring a sexually transmitted disease and in making a woman pregnant. Lack of vitamin C leads to scurvy. Lack of B vitamins causes rickets.
Smoking increases the risk of lung cancer and heart disease.
Too much alcohol can lead to liver damage. Unfortunately, circumstances beyond our control affect our health. Because of the sins of mankind in general, we must live in a polluted environment. The air we breath daily, the soil that grows our food, the water we drink, the fact that we spend so much of our time behind glass windows - all these things affect our health. Some of us can move from polluted cities, but there's no way any of us can completely escape the effects of our polluted environment.