Heat Can Impact Mental Health—Here’s Why
Published Aug 3, 2025
Did you know heat can affect your mental health? High temps can increase irritability and anxiety by disrupting sleep and affecting brain chemicals. Older adults and those with mental health conditions are especially vulnerable. Stay cool by hydrating, finding AC, and planning activities wisely to protect your well-being this summer!
Heat affects mental health and well-being
Feeling cranky in hot weather is common, as heat can significantly affect mental health.
High temperatures impact brain function and mood
When temperatures rise, the body works harder to stay cool, impacting the brain. Studies show that high heat can increase irritability, anxiety, and aggression. Examples include stressful situations like traffic jams during a heatwave.
Heat disrupts sleep and affects brain chemicals
Heat disrupts sleep, leading to tiredness and mood swings. It can also affect serotonin levels, a brain chemical that regulates mood. Lower serotonin can cause depression and anxiety, like trying to sleep on a hot night without AC.
Vulnerable populations and heat-related mental health risks
Certain groups are more vulnerable to the mental health effects of heat, including older adults, those with pre-existing mental health conditions, and individuals taking specific medications. Children in hot classrooms or waiting for buses are also at risk.
Strategies for staying cool and protecting well-being
Simple ways to beat the heat and protect mental well-being include: staying hydrated by drinking plenty of water; finding air-conditioned places; planning activities wisely to avoid strenuous activity during the hottest times; cooling down with showers or baths; and checking in with yourself and reaching out to others if struggling.
Protect mental health and enjoy summer days
Heat doesn't have to ruin your summer vibe. By staying cool and taking care of yourself, you can protect your mental health and enjoy the sunny days ahead!
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