(Press-News.org) About The Study: This trial found that a 12-week high-intensity interval training intervention did not improve hippocampal integrity or associated cognitive or mental health impairments while people continued to consume cannabis. However, results indicated that people with cannabis use disorder can engage in regular physical exercise programs and highlighted exercise as a potential strategy to reduce cannabis craving.
Corresponding Author: To contact the corresponding author, Murat Yücel, PhD, email murat.yucel@qimrb.edu.au.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(10.1001/jamapsychiatry.2025.2319)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
# # #
Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time https://jamanetwork.com/journals/jamapsychiatry/fullarticle/10.1001/jamapsychiatry.2025.2319?guestAccessKey=fda1fbaf-50da-4994-b2e9-3c996f8c47e3&utm_source=for_the_media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=091025
END
High-intensity exercise and hippocampal integrity in adults with cannabis use disorder
JAMA Psychiatry
2025-09-10
ELSE PRESS RELEASES FROM THIS DATE:
“Brain dial” for consumption found in mice
2025-09-10
NEW YORK — It’s natural to crave sugar when you feel tired and want a boost of energy. Now scientists at Columbia University’s Zuckerman Institute have linked a brain area in mice to the drive to consume not just sweets, but fats, salt and food. The findings show this area serves as a kind of dial that can amplify or repress consumption.
This discovery, detailed today in Cell, may inform novel treatments for both overeating and undereating. For instance, the results suggest that finding ways to modulate this brain circuit may help treat people suffering from the severe loss of appetite and muscle wasting often seen in large numbers of chemotherapy patients.
“The ...
Lung cancer rewires immune cells in the bone marrow to weaken body’s defenses
2025-09-10
New York, NY [September 10, 2025]—Lung tumors don’t just evade the immune system. They reshape it at its source. Researchers from the Icahn School of Medicine at Mount Sinai and collaborators report in the September 10 online issue of Nature [10.1038/s41586-025-09493-y] that tumors rewire immune cells in the bone marrow before they even reach the cancer, suggesting a new target to enhance the durability of current immunotherapy.
Immunotherapies, which rally the body’s defenses against cancer, have transformed care for many ...
Researchers find key to Antarctic ice loss blowing in the north wind
2025-09-10
Most of the Earth’s fresh water is locked in the ice that covers Antarctica. As the ocean and atmosphere grow warmer, that ice is melting at a startling pace with sea levels and global currents changing in response. To understand the potential implications, researchers need to know just how fast the ice is disappearing, and what is driving it back.
The West Antarctic ice sheet, an unstable expanse bordering the Amundsen Sea, is one of the greatest sources of uncertainty in climate projections. Records indicate that it has been steadily shrinking since the 1940s, but key details are missing. Using environmental data gathered from ice samples, tree rings and corals, ...
Ten years after the discovery, gravitational waves verify Stephen Hawking's Black Hole Area Theorem
2025-09-10
EMBARGOED UNTIL 8AM PACIFIC TIME/11AM EASTERN TIME, SEPTEMBER 10
On September 14, 2015, a signal arrived on Earth, carrying information about a pair of remote black holes that had spiraled together and merged. The signal had traveled about 1.3 billion years to reach us at the speed of light—but it was not made of light. It was a different kind of signal: a quivering of space-time called gravitational waves, first predicted by Albert Einstein 100 years prior. On that day 10 years ago, the twin detectors of the Laser Interferometer Gravitational-Wave Observatory ...
Researchers uncover potential biosignatures on Mars
2025-09-10
A new study co-authored by Texas A&M University geologist Dr. Michael Tice has revealed potential chemical signatures of ancient Martian microbial life in rocks examined by NASA’s Perseverance rover.
The findings, published by a large international team of scientists, focus on a region of Jezero Crater known as the Bright Angel formation — a name chosen from locations in Grand Canyon National Park because of the light-colored Martian rocks. This area in Mars’ Neretva Vallis channel contains fine-grained mudstones rich in oxidized iron (rust), phosphorus, sulfur and ...
Built to learn: how early brain structure primes the brain to learn efficiently
2025-09-10
Vision happens when patterns of light entering the eye are converted into reliable patterns of brain activity. This reliability allows the brain to recognize the same object each time it is seen. Our brains, however, are not born with this ability; instead, we develop it through visual experience. Collaborating scientists at MPFI and the Frankfurt Institute for Advanced Studies have recently discovered key circuit changes that lead to the maturation of reliable brain activity patterns. Their findings, published in Neuron this week, are likely generalizable beyond vision, providing a ...
Cells use electricity to eliminate their ‘weakest’ neighbours to maintain healthy protective barriers
2025-09-10
Researchers have uncovered a surprising role for electricity in keeping our body’s protective cell layers healthy.
Cells bumping against one another use electricity to identify which of their neighbours has the least energy to kill them.
The King’s College London study in partnership with the Francis Crick Institute provides insight into diseases including cancer and stroke, where cellular energy levels can be disrupted, preventing the maintenance of healthy cell numbers.
Epithelial cells, which line all organs in the body, turnover rapidly to maintain a tightly packed protective layer. They undergo a process called ‘extrusion’ ...
New motion-compensation approach delivers sharper single-pixel imaging for dynamic scenes
2025-09-10
WASHINGTON — Researchers have developed a motion-compensation method that allows single-pixel imaging to capture sharp images of complex dynamic scenes. The new approach could expand the practical utility of this computational imaging method by enabling clearer images of moving targets and improving the quality of surveillance images.
Single-pixel imaging uses a single detector, rather than the traditional array of pixels, to acquire images. Although it offers several advantages, such as high sensitivity ...
Journal of Psychiatry and Neuroscience now officially part of the Canadian Science Publishing portfolio
2025-09-10
Canadian Science Publishing (CSP) is pleased to announce that the Journal of Psychiatry and Neuroscience (JPN) is now officially part of our journal portfolio, following the completed acquisition from CMA Impact Inc. on September 2, 2025.
This marks a significant milestone for CSP, as JPN becomes the 23rd journal in our portfolio and our first in the fields of psychiatry and neuroscience. As the official journal of the Canadian College of Neuropsychopharmacology, JPN holds a leading position in its ...
What motivates runners? Focusing on the “how” rather than the “why”
2025-09-10
As attention turns to this year’s New York City Marathon, observers will again ask a long-standing question: What do athletes draw upon when trying to complete this 26.2-mile run, especially at those stretches when finishing seems impossible?
Many might think that when fatigue sets in, the key to perseverance is reminding oneself why the effort is worth it or focusing on reasons why they set the goal—intuition that lines up with motivational posters, sports psychology clichés, and coaching advice. ...
LAST 30 PRESS RELEASES:
Young scientists from across the UK shortlisted for largest unrestricted science prize
Bison hunters abandoned long-used site 1,100 years ago to adapt to changing climate
Parents of children with medical complexity report major challenges with at-home medical devices
The nonlinear Hall effect induced by electrochemical intercalation in MoS2 thin flake devices
Moving beyond money to measure the true value of Earth science information
Engineered moths could replace mice in research into “one of the biggest threats to human health”
Can medical AI lie? Large study maps how LLMs handle health misinformation
The Lancet: People with obesity at 70% higher risk of serious infection with one in ten infectious disease deaths globally potentially linked to obesity, study suggests
Obesity linked to one in 10 infection deaths globally
Legalization of cannabis + retail sales linked to rise in its use and co-use of tobacco
Porpoises ‘buzz’ less when boats are nearby
When heat flows backwards: A neat solution for hydrodynamic heat transport
Firearm injury survivors face long-term health challenges
Columbia Engineering announces new program: Master of Science in Artificial Intelligence
Global collaboration launches streamlined-access to Shank3 cKO research model
Can the digital economy save our lungs and the planet?
Researchers use machine learning to design next generation cooling fluids for electronics and energy systems
Scientists propose new framework to track and manage hidden risks of industrial chemicals across their life cycle
Physicians are not providers: New ACP paper says names in health care have ethical significance
Breakthrough University of Cincinnati study sheds light on survival of new neurons in adult brain
UW researchers use satellite data to quantify methane loss in the stratosphere
Climate change could halve areas suitable for cattle, sheep and goat farming by 2100
Building blocks of life discovered in Bennu asteroid rewrite origin story
Engineered immune cells help reduce toxic proteins in the brain
Novel materials design approach achieves a giant cooling effect and excellent durability in magnetic refrigeration materials
PBM markets for Medicare Part D or Medicaid are highly concentrated in nearly every state
Baycrest study reveals how imagery styles shape pathways into STEM and why gender gaps persist
Decades later, brain training lowers dementia risk
Adrienne Sponberg named executive director of the Ecological Society of America
Cells in the ear that may be crucial for balance
[Press-News.org] High-intensity exercise and hippocampal integrity in adults with cannabis use disorderJAMA Psychiatry