When it comes to fasting, many questions might come to mind. Is it even healthy? Is it safe? Does it benefit my fitness goals? Those are the very most typical questions that are asked by the public about fasting. The purest form of fasting, as I am sure you have heard of it, is that of intermittent fasting (IF). Which happens to be good for your health, apt to your fitness goals, and safe. 

Intermittent fasting is one of the most popular health and fitness trends nowadays, except that it `is´ not, but `has been´ for thousands of years, practiced by different societies and cultures for a wide range of variable causes. Whether a Zen monk, yogi, Tibetan monk about the Himalayas, or a participant of any Abrahamic or dharmic faith, they all have one thing in common; and that is that they all have fasted. [1]  As mentioned in the Holy Quran, “O you who have believed, decreed upon you is fasting as it was decreed upon those before you that you may become righteous(2:183) and as Imam Baqir (AS) has said “Islam has five pillars, and those are: the Prayers (Salat), the alms-tax (Zakat), the holy Pilgrimage (Haj), fasting (of Ramadhan) (Sawm), and the leadership (Imamate),” further centering on the importance of Fasting [2]. Moreover, as the Prophet (PBUH&HP) bids, “All that it is due of Zakat, and Fasting is that of the body´s” [3]. 

Fasting in Islam is a symbol of freeing oneself from false earthly desires to a more grandiose world, in which possibilities are limitless and power is infinite. In fact, we are too driven by day-to-day life that we never contemplate the things that matter anymore, or at the very least, we do not get to do so. Imam Sadiq (AS) has bid, “Allah has manifested fasting as an obligation to bring equality between the poor and the rich” [4]. 

The Power of the Present Moment

Such spiritual undertakings such as fasting and praying have a single most important thing in common, and that is the essence of the present moment. The more engaged one is with the high vibrational energies of the moment, the less compulsive and unconscious one becomes. Now we can say that acts like prayers (which brings awareness and facilitates brain and heart coherence) and meditations separate us a little bit from the compulsive and sub-conscience-driven life style of the modern society.     
But, imagine you were introduced to a life style of letting go of compulsive behaviours, thoughts, and actions; and deeply become more integrated into the present moment in which high vibrational energies reside. Ramadhan provides this opportunity for over a billion Muslims and the people of other faiths who fast because of the fun it brings, and all fasting acts for that matter. It is very important to know that we are being so driven by life that we don’t know what fun is anymore. We are so reactive nowadays, that we are no more proactive towards our lives, being triggered left and right by what the scholars call super-stimuli (over-stimulating aspects of the modern society, which our cave-man brains have not adapted to its bursts evolutionary-wise) , which our ancestors did not dispose of until as late as late twentieth century. With the rise of super-stimuli, and the further adaptation, but not evolution, of the human brain to the dopamine (the motivation, and reward neurotransmitter) hits, we live a life of chasing phantoms(reliefs) and not challenges. 

Dopamine Detoxification 

One of the hot topics of modern productivity is the deactivation of the brain´s reward centre for a period of time. Our brain´s reward centre has become very reactive, and non-proactive, and keeps on rewarding us a little shot of dopamine, whether craving a cigarette, a glass of wine, a cup of coffee, or even as far as watching pornography and binge eating for several hours. Activities which have been proven to deliberately deteriorate our physical state [5]. Yet, our brain´s reward centre keeps hitting us with feel-good chemicals. This process goes on and on as far as lowly losing the initial sensation to the initial amount, bringing up the threshold, hence; the excessive habit loop. During Ramadan, though, we break the bad old habits, we become new, as whole as a little baby, as though we have had our serotonin (wellness neurotransmitters) re-set button pushed. Fasting is not only about freeing oneself from food, but rather from all other super-stimuli, such as; negativity, excessive sexual activities, and spilling stimulating liquids down our throats all day long. 

Now, we are freed of compulsive unconscious behaviours, and embrace the true happiness of life, the state of blissfulness and joy which is what we are born with. We can sit down not eating, not drinking, not engaging in highly stimulating activities and still feel joy, and a continuous state of happiness, what had since long been robbed of us by the advancements of the modern society. We can feel great now, with the strongest paradigm of manifestation, as mentioned by David R. Hawkins, the one and only superior paradigm to all others: being. [7]  Not having, not doing, but simply letting go of the earthly, and connect to the great source of all consciousness that is “God”. As Imam Ali (AS) said “Fasting is as much staying aloof of the taboos as it is staying away of eating” [6]. 

Physical Health Benefits of Fasting

Studies have shown that the time restricted feeding (TRF) or intermittent fasting (IMF) leads to more weight loss, which is clearly manifested in the Islamic approach to fasting. Consuming more calories in the morning has shown to be more effective than that of evening, as far as metabolism, weight loss, and prevention of obesity-which has come to be a major epidemic in the developing nations. There are self-reports of significant decrease in the volume of the fat tissues under skin which distort the good looks of our bodies. Referred experiments prove that the TRF significantly decreases the body fat, but does not affect the weight in short period of 15 days. Although more weight loss upon hitting a 30 days threshold is expected. [8]

Although cutting calories from everyday diet has quite similar effects like the IMF, Small reductions in total cholesterol (TC), low-density lipoprotein (LDL) cholesterol, triglycerides, and fasting glucose and insulin with IMF have been reported in several studies. The greatest decrease of which is in bad cholesterol contributing to a lesser chance of suffering from heart diseases.

Conclusion
Health benefits of fasting encompasses far greater areas than that of the physical health. It mentally alleviates the individual, and activates a new set of  body-substances , which grants us to focus on long-term goals and areas of our lives, and become more process-oriented than result-oriented, and adapts our brain´s reward centre to long-term rewards rather than short-term pleasures. Fasting is very complex, common people have been observed achieve the uncommon by long-term fasting; in fact, so complex that by all advancements in medical science, delving deeper into the topic is an area of future investigations.

References:

1.  Armutcu, Ferah. (2019). Fasting may be an alternative treatment method recommended by physicians. 
2. Muhammad ibn Ya'qub al-Kulayni al-Razi , Forou Kafi, vol. 4, Pg. 62, 1.
3. Muhammad ibn Ya'qub al-Kulayni al-Razi , Al-Kafi, vol. 4, Pg. 62, 3. 
4. Muhammad ibn Babawayh , Man La Yahdaraho al-Faqih, vol. 6, Pg. 43, 1. 
5. de Zwaan, M. Binge eating disorder and obesity. 
6. Muhammad Baqir Majlisi, Bihar al-Anwar, vol. 93, Pg. 249, 
7. Erik H. Cohen, Rachel Sagee et Rivka Reichenberg, « Being, Having and Doing Modes of Existence
8. Effectiveness of Intermittent Fasting and Time-Restricted Feeding Compared to Continuous Energy Restriction for Weight Loss.

Imam Sadiq (AS) is the sixth Shiite Imam after his father Imam Baqir (AS). The Shiite school is mostly famous as “Jafari School” because Imam Sadiq (AS) played the most important role among the other Imams in explaining and spreading the Shiite teachings. Most of the Shiite hadiths are narrated from Imam Sadiq (AS). 

Enlightening people about the essential message of Islam

Some Islamic teachings and practices are considered as the outer aspect of Islam, like praying, Hajj, Zakkat and stuff like that. These are the practices which any Muslim should do and respect but all of them have a deeper meaning and a concealed message that people mostly do not get. Sometimes people get so much used to do these practices and conduct ceremonies that they forget about the original meaning of them. 
The holy Prophet (PBUH & HP) says: 
O Aba-Zar! (One of the companions of the Prophet) Allah almighty doesn’t care about your faces or your wealth, but he cares about your hearts and your actions (1)
When you pray or pay your Zakkat, it must change you and teach you that praying is for getting closer to Allah and Zakkat is for helping the needy. 
In this regard the holy Quran says:
Did you see him who denies the Religion?  That is the one, who drives away the orphan, and does not urge the feeding of the needy.  Woe to those who pray but are heedless of their prayers —who show off but deny aid. (The Holy Quran 107:1-7)
Imam Sadiq (AS) in different prayers says that if you pray but still feel pride and vanity, it will be useless for you because the Satan himself prayed for Allah for 6000 years but due to his vanity and jealousy, he couldn’t stand the greatness of Adam and tried to deceive him and Allah cursed the Satan. 

Being Kind with the ones who disagree 

Once Mufazzal ibn Umar (One of the brilliant pupils of the Imam) was sitting in the Mosque of the Prophet (PBUH & HP) in Medina. Then he saw Ibn Abi al-Ouja (one of the Atheist Philosophers) who was insulting the Prophet in the mosque and telling lies to the people saying that there is no god. 
Mufazzal says that this made him so angry and he couldn’t control himself so he shouted: “O enemy of Allah! Have you become atheist and denied the God who created you?”
Ibn Abi al-Ouja replied: “If you are one of the religious scholars, I will have debate with you and if you are not, our discussion will be in vain. But if you are one of the companions of Jafar ibn Muhammad (Imam Sadiq) you must know that he wouldn’t talk to us like that and he wouldn’t have discussion with us in this way. He has heard so many more disgraceful words from us but he never has insulted us. He is so knowledgeable, patient and wise and he wouldn’t lose his control out of anger, ignorance or animosity. He always listens to us.” (2)
Imam Sadiq (AS) is famous for his numerous debates with the Sunnis, Atheists, Jews, Christians and so forth, but he would never insult them. He always would order his followers to be kind with the people. 
For example about the Sunnis Imam Sadiq (AS) says:
Participate in their funerals and visit them when they are sick, and give them their rights because if a person among you is pious, honest, trustable and good-tempered, people would say “this is a follower of Jafar” and this makes me happy! (3)

Imam Sadiq (AS) and Caring about the young people

Once Imam Sadiq (AS) asked one of his pupils who had gone to Basrah (a city in Iraq):
“How was the enthusiasm of the people for our message and converting to Shia?” Imam Sadiq (AS) asked.
He said: “The ones who want to listen to our message are so few. Some of them did but they are few”
Imam Sadiq (AS) said: “You must talk to the young ones, because they are more eager for finding everything good.” (4)
Imam Sadiq (AS) also says:
“Teach hadiths to your young children from their childhood before the time that others beat you in training them” (5)
Young Shias must set Imam Sadiq (AS) as a pattern for themselves and follow him. They should learn more and more so that the different people who have gone astray can’t deceive them. 

Resources 

1.  Al-Amali, Sheikh Toosi, Pg.536
2.  Tohid al-Mufazzal
3.  Kafi, Koleini, vol.2, pg.636
4.  Vasail ash-Shia, vol.11, pg.448
5.  Kafi, Koleini, vol.6, pg.47