Mental Health · August 27, 2026
Written by Stephen P. Sweeney, APRN-CNP, PMHNP-BC, LNC
For many men, mental health conversations center on therapy, lifestyle changes, or standard psychiatric medications. However, an essential piece of the puzzle often gets overlooked: endocrine health.
When emotional well-being begins to decline without a clear trigger, physical biochemistry—specifically testosterone—may be playing a central role.
When Do Men Start Experiencing Low Testosterone?
According to the Endocrine Society, testosterone levels decrease by approximately 1% per year after age 30, although the rate varies among individuals.
While this gradual decrease is a normal part of aging, some men experience symptomatic declines earlier or more severely due to lifestyle, stress, genetics, or underlying medical conditions:
In their 30s: Subtle changes may begin, including slightly longer recovery after workouts, reduced energy, or early changes in mood.
In their 40s and 50s: The decline can become more noticeable. Some men over age 45 experience clinically low testosterone levels, also known as hypogonadism.
Lifestyle factors: Chronic stress, inadequate sleep, metabolic changes, and systemic inflammation may accelerate hormonal changes regardless of age.
How Low Testosterone May Affect Mental Health
Testosterone is not only associated with physical characteristics such as muscle mass and libido. It also interacts with receptors in the brain. When testosterone falls below healthy levels, some men may experience psychological and cognitive symptoms.
Depression and Anhedonia
Low testosterone may affect systems involved in dopamine and serotonin regulation, potentially contributing to persistent low mood, reduced motivation, and difficulty experiencing pleasure.
Increased Anxiety and Stress Sensitivity
Testosterone may influence the hypothalamic-pituitary-adrenal ( HPA) axis, which helps regulate the body’s response to stress. Hormonal imbalances may therefore be associated with increased anxiety, restlessness, or stress sensitivity.
Brain Fog and Cognitive Changes
Some men with low testosterone report difficulty concentrating, fatigue, memory problems, or persistent cognitive sluggishness.
Mood Symptoms That Do Not Fully Respond to Treatment
In some cases, persistent mood symptoms may have both psychiatric and hormonal contributors. A comprehensive clinical evaluation can help identify the factors involved.
How Hormone Replacement Therapy Works
Testosterone replacement therapy ( TRT) is a form of hormone replacement therapy used to treat appropriately diagnosed testosterone deficiency. Its goal is to restore testosterone to a healthy physiological range under medical supervision.
Comprehensive Evaluation
Rather than relying on a single result, an evaluation may consider:
- Total testosterone
- Free testosterone
- Estradiol
- Thyroid function
- Relevant metabolic markers
- Symptoms and medical history
Targeted Delivery
Depending on the patient’s preferences and clinical profile, testosterone may be administered through:
- Injections
- Topical gels
- Slow-release subcutaneous pellets
Ongoing Monitoring
Treatment typically involves monitoring symptoms, testosterone levels, and relevant health markers. The specific benefits, risks, and monitoring plan should be discussed with a qualified clinician.
Comprehensive Care at Turned Leaf Psychiatry
Recognizing that mental health and endocrine health can be closely connected, Turned Leaf Psychiatry now provides hormone replacement therapy as part of an integrated, whole-person psychiatric care model.
Rather than treating psychiatric symptoms and hormonal imbalances separately, the team evaluates the patient’s broader biological and psychological health.
Schedule an Appointment Today
In-Depth Diagnostic Testing
We investigate whether persistent anxiety, depression, fatigue, or cognitive symptoms may be related to psychiatric factors, endocrine deficiencies, or a combination of both.
Personalized Care Plans
Treatment plans may combine evidence-based psychiatric care with customized hormone protocols based on each patient’s symptoms, laboratory results, medical needs, and health goals.
Ongoing Clinical Oversight
We continually monitor psychological symptoms and laboratory values to promote safe, balanced, and effective long-term care.
Address the Whole Picture
If you are experiencing unexplained changes in mood, energy, focus, or overall vitality, treating only part of the picture may not be enough.
Evaluating possible hormonal contributors may help uncover an important piece of your mental and physical health.
Schedule a comprehensive evaluation with Turned Leaf Psychiatry to learn whether hormonal health may be contributing to your symptoms.
Testosterone replacement therapy is not appropriate for everyone. Diagnosis and treatment require an individualized medical evaluation, laboratory testing, and ongoing clinical monitoring.