Nausea News and Research

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Nausea is the sensation of unease and discomfort in the upper stomach and head with an urge to vomit. An attack of nausea is known as a qualm.

Can saffron treat Alzheimer’s and depression?

Saffron shows promise as a natural treatment for depression and cognitive decline, performing as well as standard drugs in clinical trials. However, more rigorous studies are needed before saffron can be recommended in mainstream psychiatric and dementia care.

26 Jun 2025

Sleep deficiency worsens pain mechanisms in migraine sufferers

The mechanisms in the brain that should reduce pain don’t work as well in people with migraine when they haven’t gotten enough sleep.

26 Jun 2025

What RFK Jr. isn’t talking about: How to make vaccines safer

Within an hour of receiving a covid vaccination in November 2020, Utah preschool teacher Brianne Dressen felt pins and needles through her arms and legs.

25 Jun 2025

Once-monthly obesity injection shows double-digit weight loss in major clinical trial

Researchers found that once-monthly maridebart cafraglutide led to substantial weight loss and improved glycemic control in adults with obesity, with or without diabetes, in a phase 2 randomized trial. The drug demonstrated an acceptable safety profile and supports further study in phase 3 trials.

24 Jun 2025

Cagrilintide and semaglutide together drive record weight loss in global trial

A 68-week phase 3 trial found that coadministered cagrilintide and semaglutide led to significant and clinically meaningful weight loss in adults with obesity but no diabetes. The combination outperformed either drug alone and improved multiple cardiometabolic health markers.

23 Jun 2025

Amycretin delivers unprecedented weight loss in early trial for obesity treatment

Once-weekly amycretin, a novel peptide activating GLP-1, amylin, and calcitonin receptors, produced rapid, substantial, and sustained weight loss in adults with overweight or obesity during a phase 1b/2a trial. The treatment was generally well tolerated, with mostly mild to moderate gastrointestinal side effects, supporting further investigation in larger, longer studies.

23 Jun 2025

Diabetes medication shows promise in cutting migraine days by more than half

A diabetes medication that lowers brain fluid pressure has cut monthly migraine days by more than half, according to a new study presented today at the European Academy of Neurology (EAN) Congress 2025.

20 Jun 2025

Sleep deprivation alters brain response to pain in migraine sufferers

For the first time, researchers have studied what happens in the brains of people who have migraines when they haven't slept enough.

19 Jun 2025

Two existing medications work effectively together in treating alcohol use disorder

Two existing medications - one used for smoking cessation and the other for depression - appear to work effectively together in treating alcohol use disorder.

16 Jun 2025

WHO warns of ORVO as outbreaks surge and health risks rise

Oropouche virus poses a growing public health risk, with recent outbreaks in Brazil and Cuba. The WHO report calls for urgent global preparedness measures.

13 Jun 2025

Novel sensor quickly detects small amounts of methanol in breath

Breathalyzers are a frequently used tool to measure the amount of ethanol in someone's breath, which relates to their blood alcohol content. However, alcoholic beverages contaminated by methanol (sometimes called wood alcohol) are hard to identify and toxic if ingested.

11 Jun 2025

Tufts researchers design new generation of weight loss medications

Weight loss drugs like Ozempic and Wegovy are used by over 15 million adults in the U.S., or 4.5% of the population. Despite their effectiveness, they have drawbacks.

11 Jun 2025

Chromium-rich fiber supplement keeps you fuller and reduces insulin spikes

A single dose of a chromium-enriched glucomannan-fructo-oligosaccharide fiber complex significantly reduced postprandial insulin and increased fullness in healthy adults, without affecting blood glucose. These findings highlight the potential of this functional fiber blend to support appetite control and metabolic health.

10 Jun 2025

Psilocybin rewires the brain for weeks, study finds

Psilocybin induces consistent and sustained changes in brain network connectivity, particularly between the hippocampus and default mode network, as shown using high-resolution fMRI in healthy adults. These neural effects, distinct from those produced by methylphenidate, may underlie the drug’s psychological benefits and were reproducible within individuals over time.

10 Jun 2025

Salk researchers create detailed genetic atlas of cannabis to date

Cannabis has been a globally important crop for millennia. While best known today as marijuana for its psychoactive cannabinoid THC (tetrahydrocannabinol), historically, cannabis has been a cornerstone of human civilization, providing seed oil, textiles, and food for more than 10,000 years.

29 May 2025

PAHO highlights surge in yellow fever cases across the Americas in 2025

The Pan American Health Organization (PAHO) has issued a new Rapid Risk Assessment (RRA) on yellow fever in the Americas which shows that the risk to public health remains high due to continued human cases in endemic countries of the Region.

27 May 2025

Researchers identify key nerve cells behind semaglutide's appetite reduction

A specific group of nerve cells in the brain stem appears to control how semaglutide affects appetite and weight – without causing nausea.

27 May 2025

Researchers find way to protect mitochondria from stress-induced damage

Mitochondria are the cell's power plants: They turn the food we eat into the energy our cells can use. But when stress hijacks the process they use to maintain their quality, they get snipped into useless fragments and go into a tailspin that spreads from cell to cell and triggers a wide range of human diseases.

26 May 2025

Brain stem nerve cells hold key to safer weight loss treatments

A specific group of nerve cells in the brain stem appears to control how semaglutide affects appetite and weight - without causing nausea

23 May 2025

Long-term antidepressant use linked to higher risk of withdrawal symptoms

People who have been taking antidepressants for more than two years are substantially more likely to experience withdrawal symptoms compared to short-term users when they come off the medication, finds a new study led by UCL researchers.

21 May 2025