Heatwave: RCPsych issues advice for people with mental illnesses

Press release
26 June 2026

Dr Daniel Harwood, Chair of the College's Planetary Health and Sustainability Committee, issues advice for people with mental illnesses:

“As the Met Office issues a ‘risk to life’ weather warning for parts of the UK this morning, people with mental health conditions and taking medications including antidepressants, mood stabilising or antipsychotic medications must take special care.

“We know people with mental health conditions - especially severe mental illnesses such as schizophrenia and bipolar disorder – often have worse underlying physical health than the general population, so they may be more vulnerable to sun burn, dehydration and heat stroke.

“Becoming dehydrated can be a particular problem at the moment, as it can increase sensitivity to the effects of some medicines, such as constipation for people on clozapine. People taking lithium also need to drink plenty of fluids to support their kidney function.

“I’d urge all people, but especially those with a mental illness, to make a concerted effort to stay cool and hydrated, use plenty of sun block and avoid going out during the hottest parts of the day. And if you feel physically unwell, please contact your pharmacy, mental health team or seek urgent medical advice.”

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