Last year -- 2023 -- was the world’s warmest on record, and 2024 could bring another record-shattering summer. Psychologist Kim Meidenbauer, PhD, and public health researcher Amruta Nori-Sarma, PhD, discuss how heat affects people’s mental health, emotions and even cognitive abilities; the link between heat, violence and aggression; who is most vulnerable to the effects of extreme heat; and what policy makers could be doing to mitigate its effects.

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