Cortisol is a hormone, that is very important to human function. The adrenal glands secrete cortisol and part of the endocrine system. Anatomically the adrenals sit on top our kidneys. A main effect of cortisol is to reduce the reserves of protein in all body cells except cells of the liver and gastrointestinal tract. It also makes fatty acids available for metabolic use. Cortisol is referred to as the 'stress hormone' because it is released with prolonged or intense stress.
Cortisol is involved with the following systems:
- Immune Function
- Regulate Blood Pressure
- Glucose Metabolism
- Insulin Release
- Inflammation Responses
Cortisol is present at higher levels in the mornings and lower levels at night in most healthy adults. The 'stress hormone' cortisol is released with stress and 'fight or flight' situations. The yin and yang properties of cortisol have been and are continuing to be studied. For example, low gentle release of cortisol has positive effects of:
- Quick Energy Burst
- Improved memory function
- Less Sensitivity to Pain
- Burst of increased immunity
With chronic higher levels, the negative effects of:
- Blood Sugar imbalance
- Decrease in bone density
- Decrease in muscle tissue
- Higher Blood pressure
- Decrease immunity strength
Recently at UCLA, in the Journal of Brain, Behavior and Immunity the study 'The Mechanism Behind Mind-Body Connection' was published in the May Issue. In the study they reported that all living cells have a clock called a 'telomere'. Each time the cell divides the telomere gets shorter. Having many cells with short telomere (short clocks, thus dividing and dying rapidly), has been scientifically linked to diseases such as:
- Heart Disease
- Of course, AGING
Our immune system cells, has a special enzyme built into the cell, it is called 'telomerase'. Telomerase acts on the telomere keeping the 'cell clock' long. This keeps the immune system cells young by preserving their time clock and ability to divide. How does cortisol tie into this study? Cortisol prevents our immune system cells to activiate telemerase, so the immune system begins aging, weakening, and dying like other cells. People who do not manage their stress through relaxation, meditation, prayer, breathing and other techniques have shorter telomeres on their immune system cells.
In this photograph, you can see the chromosones of an immune system cell, the chromosone is colored blue. The yellow cap on the ends is the the telomere.
This Mind Body Study shows the link between the power of your mind, to manage and reduce your stress, learning to relax and let go, as compared to those who do not. It explains why people who are under stress gets sick more often, with a variety of health care problems.
Every student with us at Tibetan Kung Fu and Tai Chi Chuan is taught and encouraged to practice calming the Heart - Mind (Yi). We know through personal experiences that the benefit of calming the mind, soothing the heart, and smoothing our chi is beneficial for ourselves and those we are around. If you want to read further how Cortisol is reduced through meditation.
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Mindfulness - Attention
Style: Tai Chi
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