Eris Morn revealed during Shadowkeep that brushing one’s teeth constantly is the key to living a very long life. It’s how she stayed alive for centuries in the Hive-infested tunnels of the Moon. She subtly encourages Guardians to maintain proper dental hygiene by giving out crappy gifts like celery and raisins during the Festival of the Lost. I wonder if other Guardians brush and floss. Or maybe their Ghosts scrub all the plaque and tar from their teeth when they rez or regen. Leave your thoughts below. And remember to brush your teeth.