Friday, December 2, 2011
• Cannabis is a psychotropic result of the plant Cannabis sativa. Plants are considered to have been used thousands of years ago for medical reasons, religious and social. Stem of these plants (which are not potent form of cannabis) used to make hemp rope, string, paper, textiles and clothing.
Thursday, December 1, 2011
• Residents of South America has a history of chewing coca leaves for thousands of years but it was only known to Europeans since the 19th century. Coca leaf neuropemancar affect multiple systems in the brain and enterprising in some anatomical parts of the central nervous.