New Study: Walking in Nature Impacts Brain and May Reduce Depression

Last week Stanford University released the results of a study indicating that not all “walks” are created equal. People that walked for 90 minutes in a wild, natural area (as opposed to similar treks in busy city areas) showed significantly decreased activity in the “rumination” region of the brain, which regulates obsessive, negative thoughts and emotions. And ongoing rumination is a critical factor in depression. 

More Vacations: Less Heart Disease

It’s summer vacation time, and there is a solid, body of medical evidence that suggests vacations are indeed good for one’s health. For instance, the famed Framingham Heart Study found that women who took a vacation once every six years or less were nearly eight times more likely to develop coronary heart disease or have a heart attack than those who took at least two vacations a year. Another study of 12,000 men at high risk for coronary heart disease found that those who failed to take annual vacations were 32 percent more likely to die of a heart attack.

Mediterranean Diet Helps Mitigate Cognitive Decline, Memory Loss

While there’s much observational evidence that correlates improved mental abilities with healthy dietary practices, a newly released clinical, randomized study provides scientific backup. Sponsored by the Spanish government and conducted by the University of Barcelona over a four–year period on 477 cognitively healthy adults (55–80 years of age) revealed that subjects following a Mediterranean-type diet, supplemented with nuts and olive oil, showed lower rates of decline in cognitive functioning than subjects who followed a simple low-fat diet. Reduced risks of dementia were also noted. Dr. Emilio Ros, who led the study, attributes this in part to the antioxidants and anti-inflammatory agents found in the supplements that have been long–suspected to improve cognitive abilities

New Study Shows Success of Financial Incentives to Quit Smoking

Results of a University of Oxford (UK) meta-analysis of 8,500 adult smokers revealed that financial incentives to quit generally carried higher sustained success rates when 1.) subjects were required to make a cash deposit (refundable upon quitting, along with additional cash incentive); and 2.) when the cash reward was significantly higher.

Exercise: How Much Is Too Little? Too Much? Just Right?

How much exercise is just right? Not enough? Too much? A recent, large study conducted by Harvard University and the National Cancer Institute on 661,000 mostly middle-aged subjects showed that people who did the recommended 150 minutes/week or less of exercise (but more than nothing) are 20 percent less likely to die prematurely, while those who exercised three times the minimum are 39 percent less likely to die prematurely. Those who worked out at 10x the recommended levels showed no significant gains beyond 40 percent, and should have perhaps opted for AMC Breaking Bad reruns.