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Phys.org / Mushroom behind 'tiny people' hallucinations identified
People in communities thousands of miles apart have described the same strange experience after eating a mysterious mushroom: vivid visions of tiny humans moving through and interacting with the physical world around them. ...
Phys.org / Mega-study analyzes the impact of gratitude interventions
Are some interventions designed to induce gratitude more effectively than others? In which countries and cultures do they work best to improve mood, strengthen bonds between people and promote social reciprocity? A study ...
Phys.org / Gut cells may measure hunger by how watery their insides become
Researchers led by Sa Kan Yoo at the RIKEN Center for Biosystems Dynamics Research (BDR) in Japan have discovered that the natural turnover of gut cells in fruit flies depends on how much food the flies get, rather than on ...
Phys.org / An ultramassive white dwarf half Earth's size may hold a rare oxygen-neon core
Astronomers have found evidence that one of the most massive white dwarfs known has an oxygen-neon core instead of the more common carbon-oxygen core. The finding is important because the composition of a white dwarf's core ...
Phys.org / Nocturnal 'coffee frog' discovered in Costa Rica
A tiny greenish, nocturnal frog that thrives in coffee plantations has been discovered in Costa Rica's central Pacific region, where it also faces risks from agrochemicals used in farming.
Medical Xpress / Omega-3 plus low-dose aspirin produces antibiotic-like results against severe periodontitis
A combination of omega-3 and low-dose acetylsalicylic acid (ASA) produced results comparable to antibiotics in treating severe periodontitis. This conclusion is based on a study conducted by researchers affiliated with Albert ...
Phys.org / Silver nanocatalysts switch reaction sites between power generation and hydrogen production
For the first time, researchers have discovered that the same silver (Ag) nanocatalyst operates at different reaction sites depending on whether a solid oxide cell is generating electricity or producing hydrogen. This finding ...
Medical Xpress / Rising temperatures linked to higher risk of homicide and suicide in Mexico and Brazil
As temperatures on Earth continue to rise, some researchers have been trying to understand how climate change influences people's physical and mental health. Some past studies have found an association between warmer weather ...
Medical Xpress / Ketamine triggers morning cortisol surge tied to fewer suicidal thoughts—but the link remains uncertain
In 1970, ketamine was approved as an anesthetic. It works by blocking receptors in the brain. Suicidal tendencies are among the dangers that accompany severe depression. Doctors have found that a low dose of ketamine, much ...
Medical Xpress / How early-life stress leaves a 'scar' inside brain cells
Experiencing severe stress during childhood can make a person more vulnerable to anxiety, depression and other mood disorders when faced with hardships as an adult. Researchers at Washington University School of Medicine ...
Medical Xpress / A precise neuronal mechanism allows the brain to plan future routes to remembered goals
When humans and other animals move through familiar or unfamiliar environments, their brains rely on numerous intricate neural processes to decide which path to take next. Past studies have identified a specific population ...
Phys.org / One million years without sex fails to erase stick insects' unused biological system
Scientists have made a surprising finding about how an asexually reproducing stick insect has evolved. Research led by Dr. Darren Parker, lecturer in evolutionary biology at Bangor University, studied the genes of several ...
