[edgyquant]

Yes it does help with hypomania. A big part of mania in general is the ego and tons of philosophies (especially the mindful ones) help you to control and curate a more healthy ego. Buddhism in particular stresses letting go and thinking rationally about how our suffering is caused by clinging to things (and meditation helps to see these things as they come and go.) This has helped me to beat my once serious anger issues I would experience during hypomania