How does cannabis affect the brain?

Some do it daily, some even several times a day. There are stoners for whom a joint is part of everyday life as naturally as butter on bread or coffee with cake.
The brain of these Cannabis users is constantly flooded with THC, the main active ingredient in cannabis.
This is especially true when using highly potent cannabis strains.

How harmful is cannabis to the brain?

There are a number of partially contradicting research results on the question if and how harmful is cannabis to the brain.
For this reason, researchers from the Center for Medical Cannabis Research at the University of California collected and analyzed all available research results on the neurocognitive effects (effects on the brain) in long-term users in 2003
Few studies provide reliable results.
Of the 1,014 studies identified that examined neurocognitive functions in cannabis users, only 15 studies could meet methodological criteria that produce reliable results.
These 15 studies include 704 long-term cannabis users and 408 non-users.
The neurocognitive studies, examines the response time, learning ability, memory and attention and no brain damage was found – but impa