Leaved curling up at edges

Have some curling of leaves near edges. Does this point to a humidity or heat problem?

likely due to heat. I grow outdoors and see this on the sunniest days with my plants. I never see any resulting issues from this and your leaves look ripe green and healthy so no stress about this. Once they start getting a little crispy and/or burnt on the tips then start backing off with your lights or adding shade if outdoors.