It’s crazy that emotions are more powerful and harder to control when it’s hotter outside, when people are too hot.
Or terminology already mirrors this: hot-headed, icy heart, etc.
Useful to know that people will be more brittle, more sensitive when it’s hot out.
Also useful that cold water can help you calm down. Holding your breath in a sink of cold water is most effective, but cold water or towels on back of neck or on face is somewhat effective as well.