Let me explain how three cups of coffee a day keeps the doctor away.
Over the years, coffee has been the subject of several studies, and they've taught us what the coffee bean contains and how coffee can affect us.
Like how it may stimulate the brain and help stabilize the blood-brain barrier, protect against free radicals and brain blood vessel blockage. It's all thanks to caffeine, polyphenol, and trigonelline.
Caffeine - increases serotonin and acetylcholine, which can potentially stimulate the brain and help the blood-brain barrier stabilize.
Polyphenol - can protect against free radicals and brain-blood vessel blockage.
Trigonelline - the high concentration found in coffee may activate antioxidants, thus may protect the brain's blood vessels.
One study conducted during ten years showed that less than 400mg of caffeine would get you the most out of your coffee. Three cups per day were the magic number to get the highest amount of benefits.