Spending time in nature is good for you..

As things are now back to full swing after the summer holiday, and before things get too budy, I wanted to share with you a piece of research that while being 3 years old is still highly relevant.  Researchers were looking at the effectiveness of listening to self-administered hypnosis stress reduction CD's to boost resilience. Eleven subjects took part in the study, all healthy, normally coping and functioning individuals - were provided with a self-administered hypnosis stress reduction CD, to be used for a minimum of 5 days a week over a 12 week period.  The CD contained two different hypnosis tracks, one to be played before sleep (25 minutes in duration) and the other to be played in the morning (lasting 7 minutes). The aim of the CD was to recondition the stress response, by minimising the participants "excessive emotional and physical reaction to perceived work and life stressors, while facilitating their coping skills and resilience."   Chronic stress and anxiety have been associated with inflammatory changes in the body, and high level of inflammation have been lined to a number of acute and chronic conditions.  Blood tests were used to measure the level of inflammatory response and self-reported measures (using the StressScan assesment) were taken pre and post intervention. While the study size is small, it provides some suggestive evidence that a self-administered stress reduction program that is time efficient may be clinically effective for modifying the stress response and boosting resilience. Reference Schoen M and Nowack K (2013)  Reconditioning the stress response with hypnosis CD reduces the inflammatory cytokine IL-6 and influences resilience: a pilot study.  Complementary Therapies in Clinical Practice 2013; 19 83-88 http://www.ctcpjournal.com/article/S1744-3881(12)00088-6/abstract

In part 1, I looked at the impact of sitting on your muscles,  and in part 2 I started to explore the impact on the rest of your body.  In this post I continue to explore the impact of sitting on your circulatory system including your heart. Heart Disease When sitting for prolonged periods of time, muscles burn less fat and blood flows more sluggishly, allowing fatty acids to more easily clog the heart.  In 2012 Ford & Caspersen in their research paper, Sedentary behaviour and cardiovascular disease: a review of prospective studies (International Journal of Epidemiology, Vol 41, No 5 pages 1338 - 1353) showed that the people with the most sedentary time are more than twice as likely to have cardiovascular disease than those with the least. In 2012 Zedric and Hamilton found that just a few hours sitting suppresses a gene that helps keep your cardiovascular system healthy by controlling inflammation and blood clotting. T W Zedric & M T Hamilton, 2012 Identification of hemostatic genes expressed in human and rat leg muscles and a novel gene (LPP1/PAP2a) suppressed during prolonged physical inactivity (sitting), Lipids in Health and Disease, Vol 11 see http://www.biomedcentral.com/content/pdf/1476-511X-11-137.pdf Cholesterol Sitting also means that your large postural support muscles are inactive.  When active these muscles produce a quite of beneficial molecules.  One molecule skeletal muscles produce is an enzyme called lipoprotein lipase - which you can think of as a vacuum cleaner for fats in the blood stream.  A study in rats showed that after 24 hours forced inactivity, their lipoprotein lipase acitivity was reduced by 90 - 95%, which led to a 75% drip in the ability of their muscles to remove fats from their bloodstream as will as a significant decrease in "good" (HDL) cholesterol. L Bay & Mark Hamilton, 2003, Suppression of skeletal muscle lipoprotein lipase activity during physical inactivity: a molecular reason to maintain daily low-intensity activity, Journal of Physiology, Vol 551, No 2 pages 673 - 682.See http://onlinelibrary.wiley.com/doi/10.1113/jphysiol.2003.045591/full

My final swap is nettles for spiralina. Spirulina's deep blue-green color reveals its active ingredient — chlorophyll — clearly. Health.com explains it as one of the oldest life forms on Earth and possibly consumed in Aztec and African diets centuries ago. Today it's touted for its ability to strengthen the immune system, reduce fatigue and combat allergies. Nettles are another plant with chlorophyll that even rivals the amount found in spirulina, but they're often found in ditch banks, forests and riverbanks. It's sometimes called "stinging nettle" because it does just that; if you touch it without wearing gloves, the tiny hairs on every surface sting like a bee due to the presence of formic acid, leaving small red welts. But internally, Bon Appetit asserts, it acts like a tonic:

"Taken over time, nettle will strengthen your circulatory, immune, and endocrine systems to promote peak function. The stronger these systems, the better position our bodies are in to deal with whatever might come our way."

"It has been found to help cure mucus congestion, skin irritations, water retention and diarrhea … stimulate the digestive glands of the stomach, intestines, liver, pancreas and gall bladder. Applied externally, nettle tea … relieves rheumatism in both people and animals, makes a first-class gargle for mouth and throat infections, helps to clear up acne and eczema and promotes the healing of burns."