The truth about caffeine and headaches. What you need to know if you drink coffee every day. health
A: Caffeine is a fascinating compound. For people who consume it regularly, its absence can trigger a headache. And because of the way the body responds to caffeine, its presence can sometimes relieve one. It's possible that both of these things are occurring in your case.
Caffeine is a mild stimulant that is easily absorbed by the body. Depending on each individual, its effects can last up to 12 hours. As caffeine revs up the central nervous system, it can leave you feeling more awake and alert, deliver a boost of energy and help with focus and even mood. Caffeine also narrows blood vessels that surround the brain. That is its link to headache.
Additional factors that can lead to a morning headache include too little or too much sleep, nighttime snoring, sleep apnea, high blood pressure, sinus congestion and dehydration. Some people find that a spike in sugar consumption, particularly later in the day, can be an overnight headache trigger.
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