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Yes, using eye drops during fasting is generally allowed for religious and medical fasts.

Yes, sauna use during a fast is possible, but keep sessions short, time them around meals, hydrate well, and stop if you feel unwell.

Yes, nicotine patches can be worn during a fast; they deliver no calories and don’t break time-restricted or Ramadan fasting.

Yes, small amounts of zero-calorie sweeteners can fit a fast, but caloric sugars and creamers end it for most fasting goals.

Many people struggle with fasting because of health limits, medications, daily schedules, or a plan that doesn’t match their needs.

After fasting, eating can feel tough due to hormone shifts, slowed digestion, and electrolyte changes—start small and ramp up steadily.

Yes, you can swim during fasting if you avoid swallowing water, pace your effort, and follow any faith-specific bathing rules.

Yes, swallowing throat mucus during a fast doesn’t add calories; for religious fasts, spit it out once it reaches the mouth.

No, a 40-day fast is dangerous; survival varies and the risk of organ failure, electrolyte crash, and refeeding injury is high.