Effect of Ramadan fasting on heart rate variability as a measure of cardiac stress in a Lebanese cohort

Intermittent fasting is an annual religious practice of Muslims worldwide, which affects the physiology of the body due to lifestyle alterations. This study aimed to evaluate the effect of Ramadan fasting on the HRV, an indirect measure of cardiac sympathetic stress. This study included 80 healthy Lebanese females (aged 18–25 years old) monitored for 24 h when following normal routine; 38 and 42 females were enrolled before and during Ramadan,...