High outdoor temperatures, fever, hot tubs, and saunas can all cause overheating during pregnancy.

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Can I use a sauna or hot tub early in pregnancy ?

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American College of Obstetricians and Gynecologists.https://www.acog.org/womens-health/experts-and-stories/ask-acog/can-i-use-a-sauna-or-hot-tub-early-in-pregnancyOpens a new windowAccessed September 2021]

AHA.

Summer heat brings special health risks for pregnant women.

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CDC.

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Climate change and extreme heat : What you’re free to do to prepare.

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CDC.

Warning signs and symptoms of heat-related illness.

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CDC.

Maternal Fever During Early Pregnancy May Be Linked to Birth Defects.

U.S. Centers for Disease Control and Prevention.https://www.cdc.gov/ncbddd/birthdefects/features/kf-birthdefects-maternal-fever-during-pregnancy.htmlOpens a new window[Accessed September 2021]

Konkel.

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Taking the Heat: Potential Fetal Health Effects of Hot Temperatures.

Environmental Health Perspectives.https://ehp.niehs.nih.gov/doi/full/10.1289/EHP6221Opens a new window[Accessed September 2021]

NIH.

Extreme temperatures could increase preterm birth risk.

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National Institutes of Health.https://www.nih.gov/news-events/news-releases/extreme-temperatures-could-increase-preterm-birth-riskOpens a new window[Accessed September 2021]

NIOSH.

Reproductive health and the workplace.

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Extreme heat episodes and risk of preterm birth in California, 20052013.

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Cardiovascular physiology of pregnancy.

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Physiological changes in pregnancy.

Cardiovascular Journal of Africa.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4928162/Opens a new window[Accessed September 2021]

Claudia Boyd-Barrett