Flexible Economy is a new enhanced Economy service operating on a single cabin aircraft for customers on our shorthaul network flying to and from London Heathrow.
Although caffeine is generally safe and well tolerated, it can cause side effects when ingested in large doses. Additionally, regular caffeine use can cause dependency, resulting in withdrawal symptoms when caffeine is not consumed. Headaches can be a symptom of either too much caffeine or too little.
In moderation, coffee can be a great fix for a pounding headache. Caffeine is a vasoconstrictor, which means it can reduce the size of blood vessels. In excess, this can cause a headache. However, one cup of coffee could help tame a difficult migraine. If your headache is caused by seasonal allergies, coffee will have an even greater effect. Coffee can reduce the release of histamine in your blood, which will calm allergic reactions and save your head from pounding pain.