Is it scientifically proven that performing Qiyam al-Layl (night vigil prayer) leads to a reduction in cortisol hormone secretion, protection against strokes and heart attacks, decreased risks of blood clotting, improved conditions for arthritis patients, treatment of chronic fatigue syndrome, ridding the body of triglycerides, reduced mortality risk, enhanced memory, and alleviation of tinnitus?

Scientific discoveries are evidence that the religion of Islam is from Allah, in fulfillment of His Almighty saying: "We will show them Our signs in the horizons and within themselves until it becomes clear to them that it is the truth." Allah shows His servants indications of the Qur'an's truthfulness and signs of its divine origin in the universe and within themselves. The discoveries related to praying Qiyam al-Layl (night prayer), if they are sound, are considered an additional indication of the truthfulness of what the Prophet, peace and blessings be upon him, brought.