A new study on college students has linked marijuana use with better performance on certain brain-related tasks.

Well different strokes for different folks , I feel Cannabis can be a good or bad depending on the sole user, If the right strain I feel yes it can hugely improve our lifes , but say for example illegal weed (its everywhere) that stuff be so strong you have no idea how its gonna hit ya.

Best to take some precautions grow a strain recommended for you & keep educating yourself

The truth is out there , its time to repeal Cannabis laws.

check out a study below on Cannabis use an our overall performances

This study comprehensively measured cognitive ability as well as comorbid psychopathology and substance use history to determine the neurocognitive profile associated with young adult marijuana use. College-aged marijuana users who initiated use prior to age 17 (n = 35) were compared to demographically matched controls (n = 35). Results: Marijuana users were high functioning, demonstrating comparable IQs to controls and relatively better processing speed. Marijuana users demonstrated relative cognitive impairments in verbal memory, spatial working memory, spatial planning, and motivated decision making. Comorbid use of alcohol, which was heavier in marijuana users, was unexpectedly found to be associated with better performance in some of these areas. Conclusions: This study provides additional evidence of neurocognitive impairment in the context of adolescent and young adult marijuana use. Findings are discussed in relation to marijuana’s effects on intrinsic motivation and discrete aspects of cognition.

http://www.tandfonline.com/doi/abs/10.1080/13803395.2014.893996#.VNjMy01yZdg