There are evenings when the mind just will not quiet down, thoughts racing faster than seems possible between notifications, deadlines, and endless feeds. In that inner noise, Muslims across the world have relied for fourteen centuries on the same instinct: returning to dhikr, the repeated remembrance of Allah's name, His greatness, His mercy. What prophetic tradition describes as nourishment for the heart is now drawing serious interest from neuroscientists and cardiologists alike. What actually happens, in the body and the mind, when someone repeats subhanallah, alhamdulillah, or la ilaha illallah? Here is what the Quran, the Sunnah, and the most credible scientific studies have to say on the subject.
“Those who have believed and whose hearts are assured by the remembrance of Allah. Unquestionably, by the remembrance of Allah hearts are assured.” — Quran 13:28
What Exactly Is Dhikr?
The word dhikr literally means “remembrance” or “mention.” In practice, it refers to any formula that recalls Allah: tasbih (subhanallah), tahmid (alhamdulillah), takbir (Allahu akbar), tahlil (la ilaha illallah), as well as reciting the Quran, making supplication (du'a), or simply holding a silent awareness of God's presence. The Prophet ﷺ gave it enormous importance. An authentic hadith reports: “The example of the one who remembers his Lord and the one who does not is like the example of the living and the dead.” (Reported by al-Bukhari). Dhikr is therefore not an optional extra of Muslim practice, it is its continuous breath, woven between the five daily prayers, on the commute, before sleep, upon waking.
A Heart That Settles: An Intuition Confirmed by Cardiology
In 2001, a team of Italian and British researchers led by cardiologist Luciano Bernardi published a now well known study in the British Medical Journal comparing the effects of reciting the Catholic rosary (repeated Ave Marias) and yoga mantras on cardiovascular rhythm. The finding: these rhythmic recitations, spoken at a steady pace of roughly six breaths per minute, synchronized breathing, heart rate variability, and blood pressure, producing a measurable calming effect on the autonomic nervous system. The study did not examine Islamic dhikr specifically, and it is worth being honest about that, but its underlying mechanism, rhythmic verbal repetition paired with breath, applies directly to the practice of tasbih. Decades earlier, in the 1970s, Harvard cardiologist Herbert Benson had already shown, in his work on what he termed the “relaxation response,” that repeating a word or phrase carrying spiritual meaning lowered heart rate, oxygen consumption, and cortisol, the stress hormone.
What Research on Meditation and Mindfulness Shows
Dhikr shares mechanisms with meditation practices studied in contemporary psychology, though it cannot be reduced to them. A landmark meta-analysis published in 2014 in JAMA Internal Medicine by Goyal and colleagues, reviewing 47 clinical trials, found that mindfulness meditation programs produced moderate improvements in anxiety, depression, and pain, with effect sizes comparable to other active treatments. The authors themselves flagged important limitations: few high quality trials, sometimes weak comparison groups, and effects that fade without regular practice. It would therefore be misleading to claim that “science proves the benefits of dhikr” in any strict sense. What can be said more carefully is that the conscious, regular repetition of a meaningful phrase, practiced with presence, activates physiological and psychological mechanisms that are now documented: slower breathing, activation of the parasympathetic nervous system, and a measurable reduction in perceived stress.
Dhikr Is Not Just Another Relaxation Technique
It would be a mistake, though, to reduce dhikr to a relaxation technique with an Arabic label. Secular mindfulness invites the practitioner to observe thoughts and sensations without judgment, useful, but ultimately self-referential. Dhikr moves in the opposite direction: the mind turns outward, toward Allah, His names, His attributes. Psychologists who study meaning-focused coping have long noted that practices connecting a person to something larger than themselves, gratitude, purpose, transcendence, tend to build resilience that generic relaxation training does not always produce on its own. In Islamic terms, this is simply niyyah, intention: the same repeated phrase said only for its calming effect and said as an act of worship do not carry the same weight, even if a cardiogram cannot tell the difference.
Nourishment for the Heart, Quite Literally
What science observes from the outside (heart rate, cortisol, brain activity), Islamic tradition has always described from within. The Quran does not simply say that dhikr brings happiness or relaxation in a shallow sense, it says hearts become “assured,” tatma'inn, a root that evokes stability, groundedness, the end of restlessness. It is an experience many regular practitioners describe concretely: after a chaotic day, setting the phone down, sitting quietly, and slowly repeating subhanallah wa bihamdihi thirty three times brings a calm that goes well beyond simple mental distraction. Ibn al-Qayyim, in his book al-Wabil al-Sayyib, devoted entirely to the benefits of dhikr, wrote that it is “to the heart what water is to a plant,” a nourishment without which nothing can truly flourish.
Fitting Dhikr Into an Already Full Day
The difficulty is never theological, it is practical. Between work, children, and screens, where does one find room for this regular remembrance? The Sunnah itself offers an answer: anchor dhikr into the transitions the day already contains, rather than adding an entirely new block of time. After each obligatory prayer, the Prophet ﷺ recommended saying subhanallah thirty three times, alhamdulillah thirty three times, and Allahu akbar thirty four times (reported by Muslim). In the morning upon waking, at night before sleep, while walking, while waiting for transport: every dead moment of the day can become a moment of remembrance rather than a moment of compulsive scrolling.
Conclusion
It is precisely in these small gaps of the day that Deenius was designed to support without ever intruding. Prayer times, calculated locally on the device with no server connection and no data collection, mark the five daily appointments with precision wherever you are. And for moments of dhikr and focus, the built in focus mode helps cut through phone distractions, with no history kept, no ads, and no tracking: just the space the heart needs to settle, exactly as the verse describes. Download Deenius for free on the App Store and turn the remembrance of Allah into a habit anchored in your daily life, with full privacy.
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