As we all know, human life is on an extremely fast pace of progress that is made possible by human expeditions and exploration. But no one can say for sure that all the achievements of this progress have been used on the righteous path. Some of these explorations are known as a forward leap in human history just like dynamite that has been used to ease miner’s jobs. But the same invention has also been used as a deadly weapon against thousands of innocent humans. Obviously, Islam did not miss this point about human life and gave advice to all Muslims in this regard: “Islam forbids eating, drinking and consuming things that are harmful to human health. The more harmful it is, the more severe the prohibition of its cause and effect, to the extent that it reaches the level of sanctity.” (1)

Now, we are going to talk about narcotics, the basis of all of the soothing medicine that are used as one of the essential materials in the ancient times surgery but is also used by heedless people for entertainment at the expense of decomposing their body and brain.

Narcotics are the most common cause of death and disability in the world that exacerbates many diseases, including cardiovascular, pulmonary, infectious diseases, cancer, bone diseases, gastrointestinal diseases, hearing problems, and oral diseases. In every 8 seconds, one person in the world dies of diseases caused by narcotics; fortunately, with the advancement of science and technology and optimal information, the level of awareness of people about the effects of narcotics on their health has increased. We will see what advice Islam gave us on the issue of using narcotics for mortal pleasure.

The opinion of some of the leaders of Islam about Drugs

As we said before, Islam forbids consuming materials that are harmful to human health to the extent that even on some occasions it reaches the level of taboo. Imam Khomeini, the first leader of the Islamic Republic of Iran said: "Eating something that is harmful to human beings is forbidden."(1) It is obvious that the criterion for being haram (forbidden) is to have harmed, and it does not matter whether this harm goes through eating or in some other way. Drugs is one of the things that harm human health, but is it harmful to the extent that makes it forbidden to use?

Many physicians and practitioners are following the opinion that narcotics has significant harms and have written numerous books on the dangers and diseases caused by narcotics, especially smoking. Therefore, it can at least be claimed that the harmful effects of smoking to human health vary based on the person and the situation. On this basis, some jurists have considered the extent of the forbiddance of narcotics to the level of absolute religious prohibition. Some other leaders have not seen the extent of the damage to the extent that could lead to an absolute ban on smoking. For example, if a person has heart disease and his doctor strictly forbids him from smoking, smoking is forbidden for him. (2) 

Not only Imam Khomeini, but also Ayatollah* Makarem Shirazi said: It is forbidden to eat or drink something that is significantly harmful to human beings. Smoking cigarettes and other types of tobacco is also haram if it has significant harm, but the use of narcotics is absolutely haram (3), whether in the form of injection or smoking or eating or in any other ways; also the production, sale and assistance in spreading it, is forbidden. (3)

Grand Ayatollah Sistani gave guidance to Muslims in this matter: If smoking and tobacco -though in the future- causes significant harm to the body to the amount that is feared by the wise person, it is haram for being safe from the major harm caused by it. There is no problem with moderate smoking, however. (4)

Conclusion

As we think about this matter reasonably, we surely would understand an important point: 
1. Why should we harm ourselves for a little mortal entertainment?
2. What price should we pay for this kind of entertainment?

Just think and you will see how important abstaining from narcotics is. Live safely in the light of the Quran. 

References:

1. Majma Al-Masayel (third volume – page 65)
2. Islamic Laws (Second volume – page 600)
3. Jame Al-Masayel (First volume – page 578)
4. Islamic Laws (Second volume – page 600)
5. The official site of Ayatollah Sistani

* Ayatollah is an honorific title for high-ranking Twelver Shia clergy in Iran and Iraq that came into widespread usage in the 20th century.

Every day we meet several people at work, in the shops, at the university, in the neighborhood, or at parties and gatherings with whom we communicate and interact. Talking, telling jokes, shaking hands, touching or kissing usually happen in these interactions; but, is a Muslim allowed to do all these with whoever he/she wants? Or is he/she permitted to be exposed to such acts?  These and many similar questions are answered in Islam.

To clarify and form the relations among people, Islam has presented the concept of Maharim and the two categories “Mahram” and “non-Mahram” which sometimes serve as conditions, requirements, or the basis of several Islamic laws. Regarding the Islamic rules on marriage, these categories define who a person can and cannot marry. Likewise, when dealing with the Islamic dress code, i.e., explaining whom one must cover specific parts of a body in front of, the concept of Maharim is required.

Who is Mahram?

One’s Mahram is anyone whom it is permanently forbidden to marry because of blood ties, marriage ties or breastfeeding. However, a woman does not need to cover her hair and put on Hijab when she is in their presence.  A woman's male Mahrams fall into three categories plus her spouse [1]. Mahrams for a man are derived similarly. The Maharim for both, extracted from the verses of the Holy Quran (4:22-23) and (24:31), are listed below [1], and all other people and relatives are considered as non-Maharams.

Categories of Maharim

Permanent or blood Mahrams, with whom one is Mahram through blood ties:
parents, grandparents, and further ancestors;
siblings;
children, grandchildren, and further descendants;
siblings of parents, grandparents, and further ancestors (cousins and their children are not Mahram);
children and further descendants of siblings;
In-law Mahrams, with whom one becomes Mahram through marriage ties:
father-in-law, mother-in-law;
son-in-law, daughter-in-law;
stepfather (mother's husband) if their marriage is consummated, stepmother (father's wife) even if their marriage is not consummated;
stepson (husband's son) even if their marriage is not consummated, stepdaughter (wife's daughter) if their marriage is consummated[i];
Rada or "milk-suckling Mahrams," with whom one becomes Mahram because of being breastfed by her. When a woman breastfeeds an infant that is not her child for a certain amount of time under certain conditions, she becomes the child's rada mother and everything concerning blood Mahrams apply here, such as rada father/mother, rada sister/brother, rada aunt/uncle and so on. In English, these can be referred to as milk-brother, milk-mother, etc. [ii].

Maharim and Marriage

It is forbidden (Haram) to marry Mahrams, but one can marry non-Mahrams who have reached puberty. As explained above, Married couples are Mahram to each other. But unlike other Mahrams, the limitations and rulings on looking and touching do not apply to them; i.e., married couples are the only ones allowed to touch and look at the whole body of one another; even the private parts. 

Maharim and Social Interactions

Regarding social interactions, there are some rules according to the concept of Maharim:

Women and men are both required to keep their gazes downcast and should not stare at the other person when facing non-Mahrams or talk to them. Even Mahrams are not allowed to see certain parts of the body of each other (this will be discussed more under a separate topic “the Islamic rules on looking“);
When talking to non-Mahrams, the tone of voice should be serious, and the dialogues should be direct and as much as necessary. One should also avoid telling jokes and laughing loudly [iii];
Any physical contact (i.e., shaking hands, hugging touching) with non-Mahrams is forbidden (haram), except for curing patients. In this case, if a doctor of the same gender as the patient exists and can cure, then it is forbidden to refer to a non-Mahram doctor.
When being sole in a closed room (where no one else can enter, i.e., locked place), it is forbidden for a non-Mahram man to remain alone in the company of a non-Mahram woman. The Prophet of Islam (PBUH&HP) said: “No man is alone with a woman except that Satan is the third one present ” [2];
It is required (Wajib) to cover specific parts of a body in the presence of a non-Mahram according to the Islamic dress code. For men, this includes from navel to knee. For women, the clothing should cover their hair and body, but covering the face and the hands, from the wrist to the fingers, is not mandated [3].

Notes:
[i] sister-in-law and brother-in-law are not Mahram.

[ii] Refer to your source of emulation (Marja’ Taqlid) for more details and the rulings.

[iii] See the article on modesty.

References: 

1. Mahram and non Mahram
2. S. H. al-Amili, “Wasail al-Shia”, vol. 20, p. 131.
3. A. Aroussi Howayzi, “Tafsir Noor al-Thaqalayn”, vol. 3/589, T. 105.