People who have a couple of teas or coffees a day have a lower risk of dementia and marginally better cognitive performance than those who avoid the drinks, researchers say.
Health records for more than 130,000 people showed that over 40 years, those who routinely drank two to three cups of caffeinated coffee or one to two cups of caffeinated tea daily had a 15-20% lower risk of dementia than those who went without.
