New research clenching your fist might help you form memories and recall them later. To find this, researchers from Montclair State University had four groups of people who were all asked to memorize a list of 72 words and then later recall it. People in one group clenched their right fist for about 90-seconds before memorizing the list, and then did the same while they remembered the words. The second group clenched their left hand before memorizing and recalling, and the other two groups clenched one hand before memorizing and then the opposite hand prior to collecting. A control group did not clench their fists at all. The group that clenched their right first when memorizing the list and their left when recollecting did the best. Researcher Ruth Propper says of the results, "The findings suggest that some simply body movements-- by temporarily changing the way the brain functions-- can improve memory."