> I was told relying on willpower is bad because you only have limited amount of it per day and surely going to fail your when you run out of it. This keeps ge

> I was told relying on willpower is bad because you only have limited amount of it per day and surely going to fail your when you run out of it. This keeps getting repeated but there is no physical evidence to it. We know muscles have a limited amount of power (because they run out of ATP energy) but there is nothing that suggests it's the same for willpower.