Keeping Healthy in Noahide Law
Rabbi Yoel Schwartz (Jerusalem Court for Bnei Noah)
A person should not indulge in things that are hazardous to his life and health. According to Genesis 9: 5, a person is not allowed to commit suicide. From this we can learn that anything unhealthy is prohibited. This includes smoking, narcotics, alcohol abuse, gluttony, exposing oneself to AIDS or other sexual diseases, driving when sleepy and taking unnecessary risks such as dangerous trips or pastimes. On the other hand a person can undertake dangerous professions, like building houses or picking fruits from tall trees because he is doing these things to build a better world and to find a livelihood for himself and his family.