Testosterone and Mental Health: The Link to Anxiety, Depression, and Focus
The conversation around testosterone tends to focus on physical outcomes: muscle, body fat, libido, and energy. But testosterone also acts on the brain, and many men wonder whether unexplained anxiety, low mood, brain fog or loss of motivation could be linked to their hormones. The research shows a real association with depression, a less clear picture for anxiety and focus, and a two-way relationship in which poor mental health can itself lower testosterone.
Key takeaways
- In a study of 3,987 men aged 71 to 89, men with depression were 2.71 times more likely to have free testosterone in the lowest quintile, after adjusting for other factors. It is a cross-sectional association, not proof of cause.[1]
- A 2019 meta-analysis of 27 randomized trials (1,890 men) found testosterone treatment was associated with a modest reduction in depressive symptoms (Hedges g 0.21) versus placebo, and the authors called for more trials.[2]
- In a randomized trial of 493 older men with low testosterone and memory complaints, one year of testosterone did not improve memory or other cognitive measures versus placebo.[3]
- Low mood, anxiety and brain fog have many possible causes. Please talk to a doctor or mental health professional rather than self-diagnosing. This is general education, not medical advice.
Medical Disclaimer
This article is for educational purposes only. It is not a substitute for professional mental health care. If you are experiencing depression, anxiety, or suicidal thoughts, please reach out to a qualified mental health professional or contact the 988 Suicide and Crisis Lifeline (call or text 988 in the US). Lifestyle habits that support healthy testosterone are a supportive strategy, not a replacement for proper mental health treatment.
Testosterone and the Brain
Testosterone is not just a reproductive hormone. Androgen receptors are found in brain regions involved in mood, memory and stress processing, including the hippocampus, amygdala and prefrontal cortex. Laboratory research suggests testosterone and its metabolites can interact with serotonin, dopamine and GABA signaling, which are systems involved in mood and anxiety. How much this matters in men whose testosterone is in the normal range is not established, so treat these mechanisms as hypotheses rather than a proven explanation for how any man feels.
Testosterone and Depression
The strongest data on testosterone and mood concern depression, and they come in two kinds: observational studies and treatment trials.
In that study, men with depression had significantly lower total and free testosterone than men without. After adjustment for age, smoking, obesity, physical illness and other factors, men with depression were 2.71 times more likely to have free testosterone in the lowest fifth, and 1.55 times more likely for total testosterone, although that second result was not statistically significant.[1] This design cannot show whether low testosterone contributes to depression, depression lowers testosterone, or something else drives both. The often-quoted claim that low testosterone makes men "2 to 3 times more likely to be depressed" overstates what this evidence shows.
Treatment trials give a more cautious picture. A 2019 meta-analysis of 27 placebo-controlled trials with 1,890 men found testosterone treatment was associated with a reduction in depressive symptoms (Hedges g 0.21, 95% CI 0.10 to 0.32), with the effect depending on dose and on how the trials were designed. The authors noted the included trials were heterogeneous and that more studies with depression as the main outcome are needed.[2] In the larger TRAVERSE trial of men aged 45 to 80 with low testosterone, treatment was associated with modest improvements in mood and energy but not in cognition or sleep quality.[4]
Testosterone treatment is a medical decision
Testosterone therapy is a prescription medicine for men with symptoms and consistently low blood levels. It carries risks, including effects on fertility, and the Endocrine Society advises against starting it in several situations, such as when a man is planning fertility or has prostate cancer.[5] It is not an approved treatment for depression. Do not try to self-treat.
Testosterone and Anxiety
The evidence on testosterone and anxiety in men is thinner than for depression. In a Dutch cohort of 722 men and 1,380 women, women with depressive and anxiety disorders had lower salivary testosterone than female controls, but the summary of findings reported no equivalent significant result for men.[6] We did not find strong evidence that low testosterone causes anxiety disorders in men. If anxiety is affecting your life, a mental health professional can help, and a doctor can rule out physical contributors such as thyroid problems, sleep apnea or medication effects.
✓ Balanced Approach
- •Talk to a doctor if anxiety is persistent or interfering with life
- •Address sleep, exercise, and nutrition as foundations
- •Combine mental health support with lifestyle changes
- •Recognize that physical and psychological health are connected
- •Track mood alongside habits to identify patterns
✗ Common Mistakes
- •Assume anxiety is purely a hormone problem
- •Self-diagnose and self-treat hormonal issues
- •Ignore mental health symptoms hoping they resolve on their own
- •Treat testosterone as a replacement for therapy or medication
- •Use alcohol or other substances to manage anxiety
Testosterone and Cognitive Function
Men with low testosterone often describe brain fog: difficulty concentrating, slow thinking and forgetfulness. Whether testosterone treatment fixes this is a separate question, and the best trial evidence is not encouraging. In the Testosterone Trials cognitive study, 788 men aged 65 or older with low testosterone received testosterone gel or placebo gel for one year. Among the 493 men who also had age-associated memory impairment, there was no significant difference between groups in delayed paragraph recall, visual memory, executive function or spatial ability.[3]
Brain fog also has many other causes, including poor sleep, stress, depression, thyroid problems and medications. Persistent concentration or memory problems are a reason to see a doctor, not to assume a hormone cause.
The Bidirectional Spiral
Because the studies are mostly observational, it is just as plausible that mental health and lifestyle affect testosterone as the reverse. Several habits that often accompany depression or anxiety are themselves linked to lower testosterone:
How Mental Health and Testosterone May Influence Each Other
Sleep disruption
Anxiety and depression often disturb sleep. In a small experiment, 10 healthy young men who slept about 5 hours a night for one week had lower daytime testosterone than when rested (16.5 vs 18.4 nmol/L).
Reduced physical activity
Low mood and fatigue reduce the motivation to exercise, and regular activity supports a healthy body weight, which in turn is linked to healthier testosterone.
Dietary changes and weight gain
Comfort eating or appetite loss can change body weight and nutrition, and excess body fat is linked to lower testosterone.
Social withdrawal
Isolation is associated with worse mental health and often with less activity and poorer sleep, which are further indirect routes.
Medication effects
Some antidepressants, particularly SSRIs, are associated with sexual side effects such as lower libido, which overlap with symptoms of low testosterone. Talk to your doctor before changing any medication.
The sleep example is from a small experiment of 10 men,[7] so it shows a plausible pathway rather than the size of the effect in everyday life. For more, see our guide to sleep and testosterone and the role of cortisol.
Low T or Depression? How to Tell the Difference
The symptoms overlap heavily, including fatigue, low motivation, poor sleep, irritability and reduced interest in sex, which is one reason low testosterone can be missed in men treated for depression, and depression can be missed in men focused on their hormones. No single symptom is diagnostic, and only a doctor can sort this out with a history, an exam and blood tests.
✓ Features more often raised with low T
- •Low T: reduced libido and fewer morning erections
- •Low T: loss of muscle and more body fat
- •Low T: low energy, often developing gradually
- •Low T: confirmed only by repeat morning blood tests
✗ Features more often raised with depression
- •Depression: persistent sadness, emptiness or loss of interest
- •Depression: feelings of guilt or worthlessness, or hopelessness
- •Depression: sleep changes such as early waking or oversleeping
- •Depression: confirmed by clinical assessment, e.g. PHQ-9 screening
Both conditions are worth investigating together. For testosterone, the Endocrine Society guideline recommends diagnosing deficiency only in men who have symptoms and signs consistent with it and unequivocally low levels, measured as fasting morning total testosterone and confirmed by repeating the measurement. In men whose total testosterone is near the lower limit of normal, a free testosterone measurement may be added.[5] A sensible pathway looks like this:
A Sensible Diagnostic Pathway
See a doctor
Describe all your symptoms, including mood, sleep, libido and energy, and ask what tests make sense.
Complete a depression and anxiety screening
Validated tools such as the PHQ-9 take minutes. If you ever have thoughts of self-harm, seek help immediately.
Blood tests
Testosterone should be measured as a fasting morning total testosterone and repeated to confirm any low result. A doctor may also check other causes, such as thyroid function.
Review lifestyle factors
Sleep, exercise, body composition, alcohol, stress and diet can affect both testosterone and mood.
Decide on treatment with your doctor
Depending on results this may mean lifestyle changes, therapy or medication for depression, medical treatment for confirmed low testosterone, or a combined approach.
A Note About SSRIs
Antidepressants such as SSRIs are associated with sexual side effects, including reduced libido,[6] which overlap with symptoms of low testosterone. If you notice new or worsening sexual symptoms after starting a medication, talk to your doctor rather than stopping it on your own. Alternatives or dose adjustments may be possible.
A Practical Approach: Supporting Both Simultaneously
The habits that support healthy testosterone overlap with those that support mental health, so working on them together is a sensible general wellness approach:
- Resistance training: A 2018 meta-analysis of 33 randomized trials (1,877 participants) found that resistance exercise training was associated with a significant reduction in depressive symptoms (mean effect 0.66).[8] See our guide to the best exercises for testosterone.
- Sleep: Regular, sufficient sleep supports mood and is linked to healthy testosterone.[7] Read more on sleep.
- Stress management: Meditation, breathwork, time in nature and social connection are general ways to reduce stress.
- Balanced diet: Adequate protein, healthy fats and micronutrients support overall health. See foods and testosterone.
- Daylight and vitamin D: Time outdoors supports your body clock. See our vitamin D guide.
When to Seek Professional Help
Lifestyle habits have limits. If you are experiencing persistent depression, severe anxiety, or any thoughts of self-harm, seek professional help immediately. The best outcomes come from treating the whole picture, with a mental health assessment and, where appropriate, a hormone work-up guided by a doctor.
Summary
- Low testosterone is associated with depression in older men, but the studies cannot show cause and effect.
- Testosterone treatment was associated with small improvements in depressive symptoms and mood in meta-analysis and trial data, mostly in men with confirmed low levels, and it is not a treatment for depression.
- Evidence that testosterone affects anxiety or cognition in men is limited, and a large trial found no memory benefit.
- The relationship likely runs both ways, through sleep, activity, body weight and stress.
- Persistent mood, anxiety or focus problems deserve a conversation with a doctor or mental health professional.
References
- Almeida OP, Yeap BB, Hankey GJ, Jamrozik K, Flicker L. Low free testosterone concentration as a potentially treatable cause of depressive symptoms in older men. Arch Gen Psychiatry. 2008. doi.org/10.1001/archgenpsychiatry.2007.33
- Walther A, Breidenstein J, Miller R. Association of testosterone treatment with alleviation of depressive symptoms in men: a systematic review and meta-analysis. JAMA Psychiatry. 2019. doi.org/10.1001/jamapsychiatry.2018.2734
- Resnick SM, Matsumoto AM, Stephens-Shields AJ, et al.. Testosterone treatment and cognitive function in older men with low testosterone and age-associated memory impairment. JAMA. 2017. doi.org/10.1001/jama.2016.21044
- Bhasin S, Seidman S, Travison TG, et al.. Depressive syndromes in men with hypogonadism in the TRAVERSE trial: response to testosterone-replacement therapy. J Clin Endocrinol Metab. 2024. doi.org/10.1210/clinem/dgae026
- Bhasin S, Brito JP, Cunningham GR, et al.. Testosterone therapy in men with hypogonadism: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2018. doi.org/10.1210/jc.2018-00229
- Giltay EJ, Enter D, Zitman FG, et al.. Salivary testosterone: associations with depression, anxiety disorders, and antidepressant use in a large cohort study. J Psychosom Res. 2012. doi.org/10.1016/j.jpsychores.2011.11.014
- Leproult R, Van Cauter E. Effect of 1 week of sleep restriction on testosterone levels in young healthy men. JAMA. 2011. doi.org/10.1001/jama.2011.710
- Gordon BR, McDowell CP, Hallgren M, Meyer JD, Lyons M, Herring MP. Association of efficacy of resistance exercise training with depressive symptoms: meta-analysis and meta-regression analysis of randomized clinical trials. JAMA Psychiatry. 2018. doi.org/10.1001/jamapsychiatry.2018.0572
How Thrive Helps
Thrive is a wellness app that helps you track daily habits such as training, sleep, nutrition and stress management, along with how you feel, so you can see patterns over time. It is not a medical device and does not diagnose or treat any condition, including depression or low testosterone. Learn more about Thrive.