Written and collected by Zia H Shah MD

Abstract

Human beings often experience joy, peace or even ecstatic rapture during both vigorous physical activity and deep spiritual practice. This article examines the overlap of biology and faith in producing these “highs,” focusing on endorphins – the body’s natural opioids – and other neurochemicals. We review evidence that exercise (running, dancing, yoga, etc.) boosts endorphin levels and mood health.harvard.edu pubmed.ncbi.nlm.nih.gov. Likewise, meditation, focused breathing and mindfulness across traditions (Islamic dhikr, Buddhist samādhi, Christian contemplative prayer, Hindu yoga, etc.) produce relaxation and sometimes measurable endorphin-mediated well-being pubmed.ncbi.nlm.nih.gov health.harvard.edu. Communal worship and ritual – from congregational prayers to choral singing – often involve synchronized movement or chanting, which independent research finds raises pain thresholds (a proxy for endorphin release) and social bonding pubmed.ncbi.nlm.nih.gov. We devote a section to the Sufi whirling (Mevlevi sema), discussing how its sustained spinning and chanting can induce trance-like states. A recent MRI study found Sufi dervishes’ brains adapt structurally to long-term spinning practice frontiersin.org, suggesting deep neuroplastic changes underlie their calm. Throughout, we integrate classical Islamic sources (Qurʾān, ḥadīth) with comparative insights from Buddhism, Christianity and Hinduism to illustrate how bodily practices are viewed as gateways to the divine. Our epilogue reflects on how scientific findings of “biological joy” harmonize with spiritual accounts of ecstasy, suggesting that caring for the body and engaging the senses can enhance transcendence in all faiths.

Exercise and Endorphin Production

Physical exertion reliably triggers endorphin release and mood elevation. The “runner’s high” – a euphoric, analgesic state after prolonged aerobic exercise – was first linked to beta-endorphin (an endogenous opioid) in the 1970s. Clinical studies confirm that moderate to vigorous exercise lowers stress hormones and boosts “feel-good” neurochemicals. For example, Harvard Health notes that a brisk pace of walking or other aerobic activity is one of the best ways to release endorphins health.harvard.edu. Indeed, all exercise tends to “raise mood by lowering stress hormones and increasing [endorphins]” health.harvard.edu. Specific research shows that dancing or running with exertion significantly raises pain thresholds (a standard proxy for endorphin activation) and strengthens social bonds pubmed.ncbi.nlm.nih.gov zygonjournal.org.

• Aerobic Exercise: Activities like running, swimming or cycling increase endorphins, relieving pain and elevating mood health.harvard.edu. Harte et al. found running markedly raised β-endorphin levels (and mood) pubmed.ncbi.nlm.nih.gov. These effects may be felt as the classic “endorphin rush.”
• Strength Training and Yoga: Even weightlifting or yoga generate endorphins by stress reduction and metabolic change. Harvard health sources note that mind–body exercises (yoga, stretching, meditative breathing) calm the mind and indirectly release opioids health.harvard.edu health.harvard.edu.
• Dance and Team Sports: Rhythmic group exercise combines exertion with synchrony. Tarr et al. (2015) found that both synchrony and exertion in group dancing independently boosted pain tolerance and in-group bonding pubmed.ncbi.nlm.nih.gov. This suggests that even folk dances, martial arts forms or sports rituals produce endorphin-mediated pleasure and social cohesion.

In Islamic tradition, physical strength is lauded alongside faith. The Prophet Muhammad (peace be upon him) is reported to have said, “A strong believer is better and more beloved to Allah than a weak believer” sunnah.com, emphasizing that bodily vigor serves spiritual life. Likewise, the Qurʾān urges moderation and enjoying lawful pleasures: “Eat and drink, but waste not by excess; He loves not those who waste [His bounty]” (Qurʾān 7:31). This encouragement of healthy living aligns with science: caring for the body and moving it can be viewed as worshipful when done in thankfulness to God.

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