Grab a snack and listen to how sneaky research was done on hungry people. It's devious and a great example of how being hungry influences mood.
Also Amy mentions Larks and Owls do a fun quiz on yourself to find out what kind of a person you are: Chronobiology Quiz
Some extra research⬇⬇⬇
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0269629
