Sri-bhagavan uvaca
Yuktahara-viharasya
yukta-cestasya karmasu
yukta-svapnavabodhasya
yogo bhavati duhkha-ha
Meaning: He who is regulated in his habits of eating, sleeping, recreation and work can mitigate all material pains by practicing the yoga system.
Bhagavad Gita: He who is regulated in his habits mitigate all material pains (Dhyana-yoga (Text 17 Ch 6))