When you're in a cold state, take a few minutes to carefully and vividly imagine what it would feel like to re-experience a past strong emotion. Rachel says that such knowledge is power. She worries that we're prone to just ignoring or shying away from the things we did when we helped out.
When mild-mannered David Banner gets mad he transforms into the raging Incredible Hulk. Dr Laurie Santos loves this comic book tale - because it reflects real life. Intense things like anger, pain, even hunger, can cause us to act in extreme ways that we might not predict beforehand or forgive afterwards.
When we're in so-called "hot states" we might become a total stranger to ourselves. This can have a serious impact on our happiness, by stopping us properly planning for how we'll react to strong emotions and causing us to be unfairly harsh on our inner Hulks.
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