Fact: Caffeine (withdrawal) can cause headaches
Fact: Caffeine is used in medicine to relieve headaches
Question: How can two seemingly opposite statements be true?
Answer: The dosage, or amount, of caffeine used/consumed, may be the reason that both “facts” can be true (although this is debatable among experts).
Caffeine is a common ingredient in many over-the-counter (OTC) headache medications. The reason? Caffeine additives make pain relievers 40% more effective in treating headaches, and helps the body absorb the medication more quickly.