 Yes, they come from the brain and the enteric nervous system, the GI tract. And what happens is when you show empathy, your serotonin goes up. All of the positive hormones go up when you show empathy. But when you snap and you're negative, then that creates stress hormones, which makes the heat even worse because you're having all these stress hormones pouring through your system, plus you're hot. What are ways to deal with this?