Are there any harmful side-effects with the VITALITY meditation? Jess April 23, 2020 22:35 Updated None. The only warning is to NOT use the meditation while driving a vehicle or operating equipment. Related articles How soon should I expect results? What is Vitality? What is the Delta Sleep Meditation System? What if I decide it’s not right for me? I’ve tried other meditation programs before...and they didn’t work. Why will this be any different? Comments 0 comments Article is closed for comments.