Is a funny bone an important part of who you are?

Having a too serious mindset isn’t that great all the time. It can lead to taking things way too seriously and create big problems, negative feelings and events from pretty much nothing. Lightening up can help you to drop unimportant stuff and leave you with more time and energy for the really important things in your life. Are you too serious or do you know someone who is? Is it a drain on your system? What besides, lighten up, can you tell somebody to get them to actually lighten up?