PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Cannabis use among older adults

JAMA Network Open

2025-05-14
(Press-News.org) About The Study: In this cross-sectional study of cannabis use in veterans ages 65 to 84, use was common, and more than one-third who used in the past 30 days had any cannabis use disorder. The prevalence of past 30-day cannabis use was close to tobacco use prevalence, and risk factors for cannabis use were similar to those observed in other populations. Frequent and inhaled cannabis use was associated with higher odds of any cannabis use disorder. Routine health screening for cannabis use in Veterans Health Administration clinical settings is necessary to identify older adults with cannabis use.

Corresponding Author: To contact the corresponding author, Vira Pravosud, PhD, MPH, MS, email vira.pravosud@va.gov.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(doi:10.1001/jamanetworkopen.2025.10173)

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 http://jamanetwork.com/journals/jamanetworkopen/fullarticle/10.1001/jamanetworkopen.2025.10173?utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_term=051425

About JAMA Network Open: JAMA Network Open is an online-only open access general medical journal from the JAMA Network. On weekdays, the journal publishes peer-reviewed clinical research and commentary in more than 40 medical and health subject areas. Every article is free online from the day of publication. 

END


ELSE PRESS RELEASES FROM THIS DATE:

New global model shows how to bring environmental pressures back to 2015 levels by 2050

2025-05-14
A first-of-its-kind study in Nature finds that with bold and coordinated policy choices—across emissions, diets, food waste, and water and nitrogen efficiency—humanity could, by 2050, bring global environmental pressures back to levels seen in 2015. This shift would move us much closer to a future in which people around the world can live well within the Earth’s limits. “Our results show that it is possible to steer back toward safer limits, but only with decisive, systemic change,” says lead author Prof Detlef Van Vuuren, a researcher at Utrecht University and the Netherlands Environmental Assessment Agency (PBL). The ...

New catalyst boosts efficiency of CO2 conversion

2025-05-14
We've all heard that carbon dioxide (CO2) emissions need urgent solutions, but what if we could turn this greenhouse gas into useful chemicals or fuels? Electrochemical CO2 conversion—the process of transforming carbon dioxide into valuable products—is a promising path toward greener energy and reducing emissions. The catch? Existing methods either don't last long or consume too much energy, limiting their real-world use. Low-temperature CO2 conversion, for instance, typically lasts less than 100 hours and reaches efficiencies below 35%. The process can be more practical at higher temperatures—between 600 and 1,000 degrees Celsius—but ...

New study shows how ancient climates may inform monsoon prediction

2025-05-14
The South Asian Summer Monsoon (SASM) is the world’s most significant monsoon system, providing approximately 80% of the region’s annual rainfall—influencing agriculture, water security, and the livelihoods of over a billion people across the Indian Peninsula, the western Indochina Peninsula, and the southern Qinghai-Tibet Plateau. Due to the monsoon’s broad effects on the region, making accurate projections of its dynamics under climate warming is crucial. However, current projections—that SASM rainfall ...

New gel could boost coral reef restoration

2025-05-14
Coral larvae are picky about where they attach and settle down. One of the ways they decide is by “smelling” chemicals in the water that are associated with healthy reefs.  Now, researchers at UC San Diego’s Scripps Institution of Oceanography and Jacobs School of Engineering have developed a gel using nano-particles that slowly release some of coral larvae’s favorite “smells.” When the researchers applied the gel, called SNAP-X, to surfaces in lab experiments it increased coral ...

UPF and the Royal Veterinary College make the first 3D reconstructions of cat hearts to compare them with humans’

2025-05-14
Pompeu Fabra University (UPF) and the Royal Veterinary College of London have worked together on a pioneering project worldwide to generate 3D reconstructions of the hearts of different animals and simulations of their blood flow using advanced computational techniques to date only applied to humans. So far, 3D images of cats’ hearts have been generated, but soon the same will be done for dogs, pigs and sheep. The project focuses on reconstructing the animals’ left atrium, the part of the heart where thrombi (or blood clots) that can lead to a heart attack ...

Special report highlights LLM cybersecurity threats in radiology

2025-05-14
OAK BROOK, Ill. – In a new special report, researchers address the cybersecurity challenges of large language models (LLMs) and the importance of implementing security measures to prevent LLMs from being used maliciously in the health care system. The special report was published today in Radiology: Artificial Intelligence, a journal of the Radiological Society of North America (RSNA). LLMs, such as OpenAI’s GPT-4 and Google’s Gemini, are a type of artificial intelligence (AI) that can understand and generate ...

Australia’s oldest prehistoric tree frog hops 22 million years back in time

2025-05-14
Newly discovered evidence of Australia’s earliest species of tree frog challenges what we know about when Australian and South American frogs parted ways on the evolutionary tree. Previously, scientists believed Australian and South American tree frogs separated from each other about 33 million years ago. But in a study published today in Journal of Vertebrate Palaeontology, palaeontologists from UNSW Sydney say the new species, Litoria tylerantiqua, is now at about 55 million years old, ...

Sorek awarded $500,000 Gruber Genetics Prize for pioneering discoveries in bacterial immune systems

2025-05-14
New Haven, Conn. — The 2025 Gruber Genetics Prize is being awarded to geneticist and molecular biologist Rotem Sorek, Ph.D., of the Weizmann Institute of Science, for his discoveries in the immune system of bacteria. Using a novel approach that combined computational approaches with an experimental system, Sorek and his colleagues conducted wide scale screens of tens of thousands of bacterial genomes, identifying an astounding number of defense systems used against infection by viruses called phages. This led to ...

Ryan Cooke and Max Pettini receive $500,000 Gruber Cosmology Prize for Measuring a Key Value at the Dawn of the Universe

2025-05-14
New Haven, Conn. — The 2025 Gruber Foundation Cosmology Prize recognizes Ryan Cooke and Max Pettini both for their determination of a key value in the composition of the universe moments after it came into existence and for perfecting the method that allowed them to make that measurement. Cooke and Pettini will equally share the $500,000 award and each will receive a gold laureate pin at a ceremony that will take place later this year. The citation honors them for “bringing the light element abundances and Big Bang Nucleosynthesis (BBN) into the realm of precision cosmology.” BBN is a theoretical model of the nuclear reactions in the first ...

$500,000 Gruber Neuroscience Prize awarded to Edward Chang for groundbreaking discoveries on the neural coding of speech comprehension and production

2025-05-14
New Haven, Conn. — The 2025 Gruber Neuroscience Prize will be awarded to Edward F. Chang, MD, of the University of California, San Francisco (UCSF), in recognition of his pioneering research uncovering how the human brain enables speech. His work has not only revealed how the brain encodes the sounds and movements of spoken language, but has also led to the development of the first successful speech neuroprosthesis to restore communication in individuals with paralysis. Dr. Chang’s research stands out for both its technical sophistication and its profound clinical impact. It combines high-precision ...

LAST 30 PRESS RELEASES:

Making lighter work of calculating fluid and heat flow

Normalizing blood sugar can halve heart attack risk

Lowering blood sugar cuts heart attack risk in people with prediabetes

Study links genetic variants to risk of blinding eye disease in premature infants

Non-opioid ‘pain sponge’ therapy halts cartilage degeneration and relieves chronic pain

AI can pick up cultural values by mimicking how kids learn

China’s ecological redlines offer fast track to 30 x 30 global conservation goal

Invisible indoor threats: emerging household contaminants and their growing risks to human health

Adding antibody treatment to chemo boosts outcomes for children with rare cancer

Germline pathogenic variants among women without a history of breast cancer

Tanning beds triple melanoma risk, potentially causing broad DNA damage

Unique bond identified as key to viral infection speed

Indoor tanning makes youthful skin much older on a genetic level

Mouse model sheds new light on the causes and potential solutions to human GI problems linked to muscular dystrophy

The Journal of Nuclear Medicine ahead-of-print tip sheet: December 12, 2025

Smarter tools for peering into the microscopic world

Applications open for funding to conduct research in the Kinsey Institute archives

Global measure underestimates the severity of food insecurity

Child survivors of critical illness are missing out on timely follow up care

Risk-based vs annual breast cancer screening / the WISDOM randomized clinical trial

University of Toronto launches Electric Vehicle Innovation Ontario to accelerate advanced EV technologies and build Canada’s innovation advantage

Early relapse predicts poor outcomes in aggressive blood cancer

American College of Lifestyle Medicine applauds two CMS models aligned with lifestyle medicine practice and reimbursement

Clinical trial finds cannabis use not a barrier to quitting nicotine vaping

Supplemental nutrition assistance program policies and food insecurity

Switching immune cells to “night mode” could limit damage after a heart attack, study suggests

URI-based Global RIghts Project report spotlights continued troubling trends in worldwide inhumane treatment

Neutrophils are less aggressive at night, explaining why nighttime heart attacks cause less damage than daytime events

Menopausal hormone therapy may not pose breast cancer risk for women with BRCA mutations

Mobile health tool may improve quality of life for adolescent and young adult breast cancer survivors

[Press-News.org] Cannabis use among older adults
JAMA Network Open