Chamomile, a popular herbal tea, has frequently been associated with benefits for relaxation and sleep. A new systematic review and meta-analysis published in Phytotherapy Research comprehensively analyzes the clinical research on chamomile for anxiety, insomnia, and sleep quality. Key facts from this study: 12 randomized controlled trials with 965 total patients were included. Trials tested …
For over half a century, neuroscientists operated under the assumption that the human brain contains around 100 billion neurons and over 1 trillion glial cells. This oft-cited “fact” made its way into textbooks and became common knowledge despite a lack of strong evidence. Recent advances in cell counting techniques have now debunked this myth, showing …
Albert Einstein is widely regarded as one of the greatest physicists and intellectuals in human history. His theories of relativity revolutionized our understanding of space, time, gravity and energy. Not surprisingly, there has been great interest in understanding if Einstein’s brain had unique anatomical features that could explain his extraordinary cognitive abilities. Several studies conducted …
A new study finds that adolescents who identify as multiracial face greater health and behavior risks compared to peers who identify with one race. Key findings show mixed-race youth have higher rates of health issues, substance use, suicidal thoughts, sexual activity, and school discipline problems. Researchers analyzed self-reported race data from over 80,000 7th-12th graders …
Amphetamine is well known for its ability to increase dopamine levels in the brain. But new research suggests the psychostimulant drug may also directly alter dopamine 2 receptors, with implications for behavioral effects and physiological changes seen after chronic amphetamine use. Key facts: In cells expressing the dopamine transporter, prolonged amphetamine exposure decreased dopamine 2 …
A new study published in the Journal of Personality suggests that individuals exhibiting secondary psychopathic traits are perceived as less intelligent than those with primary psychopathic traits. The research examined how laypeople view the intelligence of others based on psychopathic traits. Here are some key findings: Individuals described as exhibiting high secondary psychopathy traits (impulsivity, …
Wastewater from pharmaceutical plants and research facilities may contain concerning levels of toxic chemicals and drugs. As this water is often reused for irrigation or finds its way into drinking water, it poses significant public health risks that urgently need addressing. Key Facts: Wastewater can contain residues from thousands of different pharmaceuticals, including antibiotics, antidepressants, …
Kava is an ancient ceremonial drink from the Pacific Islands that’s gaining popularity worldwide for its ability to reduce anxiety, improve sleep, and protect brain health. Key facts about kava: Kava comes from the root of the Piper methysticum plant and has been consumed ceremonially and socially in Pacific Island cultures for thousands of years. …
New research demonstrates that repeated focused ultrasound treatments can have antidepressant-like effects in rats. The non-invasive technique was able to improve performance on a common test of depressive behaviors. While not a silver bullet solution, focused ultrasound represents an exciting potential alternative for depression treatment. Key Facts: Focused ultrasound (FUS) uses targeted sound waves to …
A large new study finds that exposure to common industrial solvents on the job is associated with reduced cognitive performance, especially in men. Key findings show: Men exposed to solvents like gasoline, trichlorethylene, white spirit or cellulosic thinners performed worse on tests of memory, processing speed and executive function. The more types of solvents men …
