Cortisol Production and Use by the Body
Published: 17 December 2017
Published: 17 December 2017
Better Health Channel (2017) describes cortisol as being a hormone produced by the two adrenal glands, into the bloodstream (Healthdirect 2016). There is one adrenal gland found on the top of each of the two kidneys (Better Health Channel 2017; Healthdirect 2016). The pituitary gland in the brain regulates how much cortisol is produced by the adrenal glands (Better Health Channel 2017). It does this by sending a signal to the adrenal glands to secrete the correct amount of cortisol (Healthdirect 2016).
Cortisol is referred to as ‘essential for life’ due to its ability to:
(Better Health Channel 2017; Healthdirect 2016)
Mayo Clinic Staff (2016) describe that the natural stress response is as follows:
Whilst this stress response normally stops once the perceived threat has disappeared, some people experience long-term fight-or-flight response. This means that some people will experience ongoing or repeat exposure to excessive cortisol and related stress hormones (Mayo Clinic Staff 2016). Evidently, this means that other bodily functions are repeatedly or chronically affected (Mayo Clinic Staff 2016). This leads to the following issues:
(Mayo Clinic Staff 2016)
Burns (2017) explains that cortisol has also been associated with post-traumatic stress disorder (PTSD). Additionally, clients that experience ongoing/chronic stress and affected cortisol levels, are at risk of hypertension, heart disease, and ulcers (Burns 2017). Burns (2017) states that cortisol is a biomarker for stress and it can evidently foresee the development of certain mental and physical health conditions. Burns (2017) claims that hair cortisol collection may be more valid and beneficial than other forms of collection such as via urine, serum or saliva.
Excessive cortisol can result in Cushing’s Syndrome (hypercortisolism) (Better Health Channel 2017). This condition can be caused by (Better Health Channel 2017):
Some of the signs that a person may be experiencing excessive cortisol, are (Healthdirect 2016):
It is important to help clients deal with chronic or repeated excessive cortisol in their body by helping them to understand that each person experiences stress uniquely and responds to stress individually (Mayo Clinic Staff 2016). For example, genetic differences between individuals may mean that some people experience underactive or overactive stress responses (Mayo Clinic Staff 2016). Unique life events can mean for example that a person that has experienced trauma may have increased stress responses in comparison to a person that has not experienced trauma (Mayo Clinic Staff 2016). Mayo Clinic Staff (2016) express that childhood abuse places the client at particular risk for stress.
Clearly, it is essential that health professionals help clients to deal with cortisol and stress responses in a healthy manner (Mayo Clinic Staff 2016). This can include the encouragement of the client participation in the following activities (Mayo Clinic Staff 2016):
One such form of treatment for clients experiencing stress and raised cortisol levels, can be CBT (cognitive behavioural therapy) (Holdevici & Craciun 2015). Holdevici and Craciun (2015) researched a CBT intervention that included mindfulness, and found that it successfully reduced the participants’ levels of stress (as per the Perceived Stress Scale) and cortisol (as per blood samples) pre- and post- intervention.
Rosnick et al. (2016) similarly highlight the need to support clients to manage stress and raised cortisol levels utilising CBT. Rosnick et al. (2016) convey that stress and raised cortisol levels are particularly concerning in later life, as it places older adults at risk of cognitive and physiological deterioration. Rosnick et al. (2016) conclude in their study that ‘CBT augmentation for late-life anxiety disorders’ could improve wellbeing.
Evidently, there are a range of ways in which health practitioners can support clients that experience stress and/or elevated cortisol levels. Health education and health coaching is undeniably crucial to improving the quality of life or wellbeing of said clients. Appropriate referrals to relevant health professionals (e.g. counsellors, qualified CBT therapists) is another important way to support clients, as is keeping up-to-date with current best practice and research findings for this condition.
Madeline Gilkes, CNS, RN, is a Fellow of the Australasian Society of Lifestyle Medicine. She focused her master of healthcare leadership research project on health coaching for long-term weight loss in obese adults. In recent years, Madeline has found a passion for preventative nursing, transitioning from leadership roles (CNS Gerontology & Education, Clinical Facilitator) in hospital settings to primary healthcare nursing. Madeline’s vision is to implement lifestyle medicine to prevent and treat chronic conditions. Her brief research proposal for her PhD application involves Lifestyle Medicine for Type 2 Diabetes Mellitus. Madeline is working towards Credentialled Diabetes Educator (CDE) status and primarily works in the role of Head of Nursing. Madeline’s philosophy focuses on using humanistic management, adult learning theories/evidence and self-efficacy theories and interventions to promote positive learning environments. In addition to her Master of Healthcare Leadership, Madeline has a Graduate Certificate in Diabetes Education & Management, Graduate Certificate in Adult & Vocational Education, Graduate Certificate of Aged Care Nursing, and a Bachelor of Nursing. See Educator Profile