What causes extreme morning sickness? What we know, don't know and suspect about hyperemesis gravidarum
Most women experience some nausea and vomiting in early pregnancy.
Jan 13, 2026
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Pathological Conditions, Signs and Symptoms: News and Research on Morning Sickness
MeSH tree: C23.888.821.937.049
Severe nausea during pregnancy and depression: Study reveals bidirectional association
A recent study conducted at the University of Turku in Finland showed that hyperemesis gravidarum, a severe form of nausea that occurs during pregnancy, is linked to depression. Women who experienced severe nausea were more ...
Nov 15, 2025
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Severe pregnancy sickness raises risk of mental health conditions by over 50%, study finds
The largest study on pregnant women with excessive nausea and vomiting (hyperemesis gravidarum) has identified increased risks of numerous neuropsychiatric and mental health outcomes. The study is published in the journal ...
Sep 18, 2025
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Extreme pregnancy nausea: Research reveals the emotional and medical toll
A new study reveals the profound emotional and physical toll of extreme morning sickness, with more than half of affected women reporting they considered terminating their pregnancy, and nine in 10 saying they had thought ...
Sep 3, 2025
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200+ women faced criminal charges over pregnancy in year after Dobbs, report finds
In the year after the U.S. Supreme Court dismantled the constitutional right to abortion in June 2022, more than 200 pregnant women faced criminal charges for conduct associated with their pregnancy, pregnancy loss or birth, ...
Oct 2, 2024
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Dispelling severe morning sickness myths: It's not normal or harmless, but prevention and treatment might be on the way
Late 2023, geneticist Marlena Fejzo and colleagues made the discovery that morning sickness's most serious presentation, hyperemesis gravidarum (HG), is caused by the hormone GDF15, not human chorionic gonadotropin as previously ...
May 22, 2024
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Severe morning sickness: New research explores diagnosis and treatment
Severe morning sickness in pregnancy, known medically as hyperemesis gravidarum, can negatively affect both maternal and infant health. A review published in Canadian Medical Association Journal provides information to clinicians ...
Apr 15, 2024
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Morning sickness doesn't only occur in the morning. So why do we still call it that?
As many as 90% or more of pregnant people experience some degree of nausea or vomiting, often colloquially referred to as "morning sickness."
Dec 25, 2023
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Hormone secreted by fetus causes morning sickness: study
A hormone produced by the human fetus is to blame for morning sickness in pregnant women, a study has found, paving the way to possible prevention and treatment.
Dec 24, 2023
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More than morning sickness: Researcher studies hyperemesis gravidarum survivor stories
Imagine waking up one morning feeling ill, like you've come down with an unrelentingly bad stomach bug.
Dec 20, 2023
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