人體有四種天然的快樂因子，不假外求，本自俱足：第一種是腦內啡，可以緩解疼痛...✨幸福力協會官網：https://www.hi-way.org/➡歡迎上傳心得或提問https://bit.ly/2Sjrksg♫ Music ("I'll Stay") by Peder B. Helland, licensed for free from Soothing Relaxation: https://soothingrelaxation.com/
