In a new study, published in Gut Microbes, experts from the University of Nottingham found that exercise intervention in people with arthritis did not just reduce their pain, but also lowered the levels of inflammatory substances (called cytokines). It also increased levels of cannabis-like substances produced by their own bodies, called endocannabinoids. Interestingly, the way exercise resulted in these changes was by altering the gut microbes.
Exercise is known to decrease chronic inflammation, which in turn causes many diseases including cancer, arthritisand heart disease, but little is known as to how it reduces inflammation.
A group of scientists, led by Professor Ana Valdes from the School of Medicine at the University, tested 78 people with arthritis. Thirty-eight of them carried out 15 minutes of muscle-strengthening exercises every day for six weeks, and 40 did nothing.
At the end of the study, participants who did the exercise intervention had not only reduced their pain, but they also had more microbes in their gutof the kind that produce anti-inflammatory substances, lower levels of cytokines and higher levels of endocannabinoids.