Strange but true: the moon may impact your sleep. Current Biology reported that study participants who slept in a completely dark lab got an average of 20 fewer minutes of sleep per night on the days shortly before or after a full moon and also showed lower levels of melatonin (the hormone that makes you sleepy) and 30% less EEG activity, which is associated with deep sleep. This monthly anomaly seems to be ingrained in our circadian rhythm, and even though you can’t do much about it, you might try going to bed extra early the day before a big meeting if it takes place close to the time of a full moon. November 25 and December 25 are the final full moons of 2015. Sweet Dreams tonight!