Research: Cannabis may harm memory and disrupt brain activity

Another scientific evidence of brain cannabis damage: A new study that included brain scans in hundreds of subjects has showed a significant decrease in brain function in performing memory actions. The study was published in the Jama Network.

The effects of cannabis have been studied in recent decades, but many of the questions have remained open. Previous studies have shown that prolonged use can impair short -term memory, reduce the level of attention, and affect other cognitive functions. In addition, cannabis has been found to affect the structure and function of the hippocampus – an area in the brain -related brain and memory.

The researchers used functional MRI (FMRI) to monitor brain activity while performing seven different types of cognitive tasks, including memory -related tasks, emotions, language, motor skills, and rational thinking. The findings showed that the most significant impact of cannabis was on tasks that require working memory, with central brain -related areas, concentration and decision making showed a decrease in their activity.

Working memory is a critical cognitive process that allows us to store and process information in the short term, and it is essential for daily functions such as problem solving, instructions, and task planning. Damage to working memory can lead to difficulties in concentration, problem solving and managing complex tasks.

However, there is a scientific controversy regarding the long -term cannabis effects, especially in people who begin to consume it at an early age. Some studies indicate that cessation of use may enable a partial recovery of cognitive abilities, but the new research raises concerns that the damage to working memory may be more prolonged than they previously thought.

In the widespread new study of its kind, a thousand young people aged 22 to 36 were examined using MRI imaging. The study classified participants to three groups according to their prevalence in cannabis: heavy users-who consumed cannabis over 1,000 times throughout their lives. Medium users-consumed between 10 and 999 times. And no users, who consumed less than 10 times or did not consume at all. As mentioned, the heavier the use of cannabis, the more significant decrease in brain activity when performing cognitive tasks.

The researchers found that 63% of the heavy users in cannabis demonstrated a significant decrease in brain activity when performing a work memory mission. Among users who have recently consumed cannabis, this effect was even more prominent, with 68% of them a decrease in brain activity compared to people who do not consume cannabis at all.

Among the affected areas were the Dorteral Pontallary Cortex, a critical area of ​​working memory, planning and decision-making. In the meantime, the pondic-frying cortex involved involved in cognitive concentration and control and another area known as “an insula” used for emotional and cognitive processing.

Researchers note that the cessation of cannabis may some extent enhance cognitive function, but there are also implications. “Heavy users who experience a sharp break in cannabis consumption may experience temporary cognitive function disorders.” Specify Dr. Joshua Guine The main researcher in research. “People should be aware of how cannabis affects them and plan accordingly.”