Have you ever noticed the scent of pine needles, rosemary, dill, parsley, basil, or hops coming from your marijuana medication? This smell can be attributed to the terpene pinene. Terpenes are found in plants other than cannabis, and pinene happens to be the most common terpene in the plant world.
Along with their cannabinoid cousins, terpenes are responsible for the therapeutic relief found in cannabis. Pinene can act as a bronchodilator and an antiseptic, but what it is most famous for is its anti-cancer and memory-enhancing properties. It has the ability to improve mental focus and energy by crossing the blood-brain barrier and it interacting with neurotransmitters to enhance memory. Pinene can also reduce the size of cancerous tumors, as it acts as an antioxidative and anti-cancer agent. There is only a limited amount of research that exists and points us to these conclusions, but Whaxy concludes the most significant data shows that "pinene- and all terpenes- act in a synergistic manner with other terpenes, as well as cannabinoids like THC, to provide medicinal efficacy for those suffering from a wide range of diseases, especially cancer."
For more on Pinene and the specific studies supporting these claims, take a look at this article: http://bit.ly/1JRH36x