How to reduce stress and blood pressure
I estimate there have been up to 15,000 peer reviewed studies linked to meditation and mindfulness published over the last 40 years. They have offered all kinds of academic and scientific insight. Many claim to signpost potential health and wellbeing breakthroughs, but few are actually replicated (repeated) sufficiently to be regarded as clinically reliable. However I recently came across a study carried out at the Massachusetts General Hospital that offers some interesting evidence that meditation might be able reduce both stress and blood pressure.
In a randomised trial one half of the participants followed an eight week course of mindfulness meditation, the other half engaged with traditional stress management training, coupled with some lifestyle advice. At the end of the experiment some members of the mindfulness group were found to have lower levels of the adrenocorticotropic (ACTH) stress hormone than the control group (stress hormones can be correlated with high blood pressure). The meditation group also performed better in a mock interview and test scenario specifically designed to raise stress levels. Thereby indicating that mindfulness meditation led to ‘real world’ benefits. In a third finding the meditation group also had a reduced inflammatory reaction to stress, a possible factor linked to Type 2 diabetes.
This investigation offered the first immunological and hormonal data that mindfulness meditation may be able to boost resilience to stress. Some parts of the media hailed this study as a breakthrough. I’m a little more cautious but clearly if we see other experiments achieving the same findings it provides import insights into low cost and effective treatments for stress. However the popularity of mindfulness means that most participants are likely to know something about the reputed effects of meditation ahead of going into a trial, raising concern about the reliability of data derived from these kinds of studies.
Details of the study can be found here.