The biggest enemies of willpower: temptation, self-criticism, and stress. (...) these three skills โself-awareness, self-care, and remembering what matter mostโ are the foundation for self-control.
Kelly McGonigalWhen you choose to view your stress response as helpful, you create the biology of courage.
Kelly McGonigalFor most of us, the classic test of willpower is resisting temptation, whether the temptress is a doughnut, a cigarette, a clearance sale, or a one-night stand. When people say, "I have no willpower," what they usually mean is, "I have trouble saying no when my mouth, stomach, heart, or (fill in your anatomical part) wants to say yes.
Kelly McGonigal