https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (Phys.org)—Researchers have discovered that a genetic difference in a 'switch', which causes over-activity in parts of the brain, may explain why some people could be more susceptible to conditions such as obesity and addiction, and may play a role in chronic pain and psychosis. https://phys.org/news/2012-08-cannabis-receptor-discovery-obesity-pain.html Biochemistry Thu, 23 Aug 2012 09:10:01 EDT news264930526