evidence: Furthermore, compounds found in cannabis have been shown to kill numerous cancer types including: lung cancer [9], breast and prostate [10], leukemia and lymphoma [11], glioma [12], skin cancer [13], and pheochromocytoma [14]. The effects of cannabinoids are complex and sometimes contradicting, often exhibiting biphasic responses. For example, in contrast to the tumor killing properties mentioned above, low doses of THC may stimulate the growth of lung cancer cells in vitro [15]. [...] For example, activation of the nicotine receptors, as is also true of cannabinoid receptors [36], can prevent the brain cell death that results from exposure to beta amyloid protein [37] as occurs in Alzheimer's disease. [...] Hart S, Fischer OM, Ullrich A: Cannabinoids induce cancer cell proliferation via tumor necrosis factor alpha-converting enzyme (TACE/ADAM17)-mediated transactivation of the epidermal growth factor receptor. Cancer Res. 2004, 64: 1943-1950. 10.1158/0008-5472.CAN-03-3720.