 which requires the test taker to count backwards, identify objects in the room, start stating the date, and other, quote, commonwealth facts. According to the Cleveland Clinic, the mini-cog is the shortest and easiest to complete at three minutes. It includes memorizing and recalling a three-word list of unrelated words and drawing a circle clock with time points and then showing the hands for a specific time. Under the what they can't tell us section, it says it should be noticed that older people's brains perform differently than younger people's.