In the body, a real yes feels like appetite: a surge of I want this that rises in the chest and puts fuel behind your word. A false yes has to be manufactured, argued for, propped up with reasons about duty or image. For some with this authority the truth is best heard out loud, in what you actually say in the moment rather than what you planned to say, so listen to your own voice: the unscripted words that come out when someone puts a decision in front of you are more honest than anything you rehearsed. If you catch yourself carefully managing what you say, you have already handed the decision to your mind.
Overriding this authority almost always looks like being good. You take on the extra project to prove your worth, promise a favor out of politeness, or accept the role because it would disappoint someone to refuse. Then the will to deliver simply is not there, the commitment drags, and the strain lands on your actual physical heart. A job offer is worth a blunt inward check: does this genuinely reward me, in money, meaning, or standing, enough that I want to give it my effort? If the honest answer is no, the polished reasons do not matter.
The Heart is a motor that works in powerful bursts and then needs rest, and it stays healthy in two ways. First, make only promises you truly mean, then keep them; every kept promise builds willpower and self-respect, while every broken or grudging one erodes both. Second, balance effort with real recovery: you work hard so that you can also rest and play, and skipping the rest half of that bargain taxes the heart itself. Commit only where the want is real, say no cleanly everywhere else, and you spend your will where it counts.