Author name: Mo

Yes, fasting can raise eating-disorder risk and may precipitate illness in vulnerable people.

Yes, fasting can trigger blurry vision via low glucose, dehydration, or blood pressure drops; persistent changes need medical care.

Yes, fasting can trigger back discomfort in some people through dehydration, electrolyte shifts, or bile-related pain.

Yes, fasting can trigger a sore throat through dryness, reflux, and post-nasal drip, especially when fluids and meal timing shift.

Yes, fasting can trigger migraine attacks in some people due to low glucose, fluid loss, caffeine shifts, and sleep changes.

Yes, fasting can change menstrual cycle timing or flow, especially with calorie deficits, low BMI, stress, or intense training.

Yes, fasting can shift white blood cell counts—often a temporary drop during fasting with rebound after refeeding.

Yes, fasting can disrupt ovulation when energy intake drops enough to alter hormones that drive the cycle.

Yes, fasting can shift thyroid blood results—TSH and free T4—depending on fast duration, draw timing, and medication timing.

With fasting, thyroid hormones can dip slightly; in healthy adults these shifts are usually small and reversible.