The second stage of a research project into the relationship between motorcycle riding and brain stimulation conducted jointly by Tohoku University and Yamaha is due to wrap up this month, December 2010. Source: http://www.japancorp.net/article.asp?Art_ID=22107 Findings of the first stage of this project released in Mar 2009 found that: - riding a motorcycle activates prefrontal areas of the brain; - differences in brain use and level of brain stimulation can be observed in motorcyclists who ride regularly and in motorcyclists who have not ridden for extended periods; - Incorporating motorcycle riding into daily life improves various cognitive functions and has positive effects on mental and emotional health such as stress reduction. The area activated covers memory, information processing and concentration functions. Past research data has indicated the prefrontal area does not work as much when driving an automobile. Source: http://www.japantoday.com/category/...-riding-motorcycles-useful-for-brain-training Source: http://thecurrentaffairs.com/riding-motorcycles-can-keep-you-young-study.html Source: http://www.idac.tohoku.ac.jp/dep/sairc/research.html In a separate study - results released earlier this year - it has been found that dirt bike riding improves quality of life. The news gets better; the second publication in this series of four reports has confirmed that 96.6% of ORV riders consider themselves to be both positive, optimistic thinkers, are “expected to have lower levels of stress and depression…and a higher overall life satisfaction”. Source: http://www.oftr.ca/articles.php?id=4426 This study is by Burr, Jamie Francis Burr, Ph.D., YORK UNIVERSITY , 2010 Source: http://gradworks.umi.com/NR/64/NR64874.html By comparison there is objective evidence that commuting by car and train increases stress. Commuting by car or train elevates blood pressure, adrenaline, cortisol (neuroendocrine processes that are key players in the fight/flight response) – known stress markers directly implicated in development of cardiovascular disease and suppressed immune function. Cortisol is a well-known mechanism linking environmental exposure to stressors to physical morbidity. This study was the first time the adverse impact of commuting conditions on work settings was documented. It also re-confirmed & showed: - Commuting by car & train elevates stress - carpool passengers experience greater stress than carpool drivers; - Carpooling was more stressful than solo driving; - Higher traffic congestion directly relates to less control, less control has a relationship to greater stress. - Different levels of stress between men & women. Source: http://www.utrc2.org/research/assets/74/commuterstress2-report1.pdf Do you know of any other research studies conducted into the health benefits of riding a motorcycle? .