rapid hair growth when relaxed
Idiomatic expression referring to the phenomenon where hair seems to grow faster when one is relaxed or not stressed. Often used in casual conversation about hair growth.
When stress is gone, it feels like my hair grows faster because of 楽髪.
I wonder if 楽髪 is really a thing.
Compound of 楽 (らく, 'comfort, ease') and 髪 (かみ, 'hair'), with rendaku voicing. The exact origin is uncertain; it is a colloquial idiomatic expression.