Understanding Cortisol: More Than Just the "Fight or Flight" Hormone
This adrenal gland-secreted steroid hormone is commonly linked to allergies, skin issues, and joint discomfort, often administered through hydrocortisone injections or cortisone-based creams for relief. While cortisol is widely recognized as the catalyst for the "fight or flight response," its scope extends far beyond that role. Its fundamental functions include boosting protein breakdown, hindering glucose absorption, and escalating lipolysis (the breakdown of fats). Additionally, cortisol regulates immune responses and fosters the breakdown of protein and fat growth.
Elevated cortisol levels can manifest in symptoms like mood swings, diminished exercise motivation, muscle loss, decreased appetite, and disrupted sleep patterns. Failure to regulate cortisol may result in muscle breakdown, fat storage, and susceptibility to illnesses, along with the potential for more severe health issues.
Uncontrolled cortisol levels can adversely impact various facets of health, including sleep, mood, bone health, libido, immune system function, cardiovascular health, and athletic performance, while also causing inflammation and fatigue. Ideally, cortisol levels should be balanced to avoid disruptions in bodily functions and reactions due to imbalances.
In our modern society, individuals, particularly those navigating stressful situations and lifestyles, frequently experience erratic cortisol levels. This imbalance wreaks havoc on sugar metabolism, sleep patterns, physical activity, and the immune system, contributing to premature aging and an increased risk of diseases like arthritis, cancer, and inflammation.
Consistent exercise without adequate rest, poor nutrition, insufficient supplements, and inadequate sleep can lead to chronically elevated cortisol levels. This concern is particularly relevant for athletes, regular exercisers, "weekend" athletes, and individuals with conditions such as arthritis, autoimmune disorders, and skin problems. Skin issues like eczema, mysterious rashes, allergies, and rosacea may signify a cortisol imbalance that should be addressed internally rather than solely relying on endless cortisone cream applications.
Cortisol is released in response to stress, aiding in the restoration of bodily homeostasis during the "fight or flight" scenario. However, prolonged cortisol secretion, stemming from chronic emotional or physical stress, can induce significant physiological changes. Working in conjunction with adrenaline, cortisol contributes to the formation of short-term memories of emotional events. Notably for women, cortisol reduces calcium absorption and bone formation, potentially leading to osteoporosis development over time. It can also impair the reproductive system and gut calcium absorption in extreme cases.
Maintaining balanced cortisol levels is pivotal for long-term health and well-being for everyone.