You want neuroscience? Here's some neuroscience.
Pot joins the fight against Alzheimer's, memory lossHigh-dose cannabis stimulates growth of brain cells in rats
Heavy Marijuana Use Doesn't Damage Brain
Analysis of Studies Finds Little Effect From Long-Term Use'Cannabis' brain tumour drug hope
Fixed the link.
Cannabis Chemicals Stop Prostate Cancer Growth
ACTIVE chemicals in cannabis have been shown to halt prostate cancer cell growth according to research published in the British Journal of Cancer.
Researchers from the University of Alcala, in Madrid tested the effects of the active chemicals in cannabis called cannabinoids on three human prostate cancer cell lines - called PC-3, DU-a45 and LNCaP.
The prostate cancer cells carry molecular ‘garages’- called receptors- in which cannabinoids can ‘park’.
The scientists showed for the first time that if cannabinoids ‘park’ on a receptor called CB2, the cancer cells stop multipyling...
http://www.medicalnewstoday.com/articles/161628.php
Inhibition of human tumour prostate PC-3 cell growth by cannabinoids R(+)-Methanandamide and JWH-015: Involvement of CB2
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2743360/