Title: The Science Behind Marijuana and Motivation - Leaf Science
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Content: This effect is only temporary, and is measurable for about 2 hours following ingestion of marijuana. That being said, when marijuana is consumed repeatedly, it can cause more lasting changes to your dopamine-reward system. Does Marijuana Reduce Motivation? (Photo: SunshineVector/Shutterstock)
The issue of whether marijuana reduces motivation is still up for debate. Some studies show that marijuana can lower motivation, while others find no difference at all. The belief that marijuana reduces motivation can be traced back to the 1960s and 70s. During this time, North America saw an increase in cannabis use, and many early studies claimed that using marijuana could lead to chronic laziness. Amotivational Syndrome
In 1972, scientists came up with the term amotivational syndrome to describe the loss of drive to work, socialize, and attain success in life commonly seen in marijuana users. Marijuana users were described as apathetic, lethargic, and disengaged.