Cannabis Weakens Memory

Researchers found that heavy cannabis use reduces brain activity during working memory tasks, leading to cognitive struggles. Brain scans showed changes in regions responsible for memory and decision-making. While abstaining may help, more research is needed to understand long-term effects. Credit: SciTechDaily.com

A massive new study sheds light on how cannabis affects the brain, particularly during cognitive tasks.


Researchers analyzed over 1,000 young adults and found that both heavy lifetime use and recent cannabis consumption significantly reduced brain activity during working memory tasks. This impairment was linked to worse performance on tasks requiring focus, problem-solving, and instruction-following. Brain imaging revealed that key regions responsible for decision-making and attention were affected.

Cannabis Use and Brain Function: A Groundbreaking Study

A new study published in JAMA Network Open examines how both recent and long-term cannabis use affects brain function during cognitive tasks.

As the largest study of its kind, researchers analyzed over 1,000 young adults aged 22 to 36 using brain imaging technology. They found that 63% of heavy lifetime cannabis users showed reduced brain activity during a working memory task, with a similar impact seen in 68% of recent users.    READ MORE...

REAL Quantum Weirdness

Down at the level of atoms and electrons, quantum physics describes the behavior of the very smallest objects. Solar panels, LED lights, your mobile phone and MRI scanners in hospitals: all of these rely on quantum behavior. It is one of the best-tested theories of physics, and we use it all the time.

On the face of it, however, the quantum realm is extraordinary: Within it, quantum objects can be “in two places at once”; they can move through barriers; and share a connection no matter how far apart they are. Compared to what you would expect of, say, a tennis ball, their properties are certainly weird and counterintuitive.     READ MORE...