Is it permissible to smoke hookah/shisha/cigarettes?

It is permissible to smoke cigarets and what is known as Hookah, it is however Makrooh. It can be Haram if it brings harm to the body, and the harm which is haram is: Bringing death to yourself or stopping the body or body parts from functioning. Other than that, it is not Haram and is not Islamically considered a harm.