Humans are the primates who have the largest frontal lobes because we have the largest social groups, and that’s apparently why we have the most need for self-control.
If you pour energy into your art, you have less available to restrain your libido.
Note: Uh oh.
So if you’d like some advance warning of trouble, look not for a single symptom but rather for a change in the overall intensity of your feelings. If you find yourself especially bothered by frustrating events, or saddened by unpleasant thoughts, or even happier about some good news—then maybe it’s because your brain’s circuits aren’t controlling emotions as well as usual.
Ego depletion thus creates a double whammy: Your willpower is diminished and your cravings feel stronger than ever.