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.
Caffeine can be a headache trigger or headache inhibitor. Caffeine can be found in beverages, chocolate and even in some popular over-the-counter and prescription pain relievers.Before a headache or migraine, blood vessels tend to enlarge.lthough most headache sufferers can consume up to 200 mg. per day, the NHF advises patients with frequent headaches to avoid daily use. The average American consumes about 200-300 mg of caffeine a day (or the equivalent of 2-3 cups of drip coffee).