Decaffeinated coffee grew in popularity over the last half of the 20th century, mainly due to health concerns that arose regarding the over-consumption of caffeine.[55][56][57] Decaffeinated coffee, sometimes known as "decaf," may be drunk as regular brewed coffee, instant, espresso, or as a mix of regular caffeine beans and decaffeinated beans.[58][59]
As usual, an excellent and well-argued article. I spent 20 years making coffee I didn’t like and putting milk in it to turn it into coffee I did like (I kicked the sugar habit over 25 years ago, realising it was seriously bad for my health). It’s only in the last few years, and through writing the Coffee Spot , that I’ve discovered that I can make coffee I like without having to put anything in it.
Mazagran (sometimes misspelled as Mazagrin) is a cold coffee drink that originated in Algeria. It is typically served in a tall glass, and is made with coffee and ice. Sometimes sugar, rum, lemon or water is added. Sometimes a fast version is achieved by pouring a previously sweetened espresso in a cup with ice cubes and a slice of lemon.[citation needed]

A 28-year study, eventually published in 2017 in Alzheimer's and Dementia, the journal of the Alzheimer's Association, determined that four to five cups of a coffee a day – a level deemed "moderate" – led to a decreased risk of dementia during that time period. Those who drank coffee in moderate levels had less medial temporal atrophy, which is linked to Alzheimer's disease, compared to those who drank three or fewer cups a day, including those who didn't drink any.