ResMed

Short answer: possibly — low testosterone (male hypogonadism) can cause fatigue, low motivation and low libido, but those symptoms are nonspecific and can also be caused by depression, poor sleep (including sleep apnea), certain medications, thyroid disease, anemia, chronic illness, or lifestyle factors. You’ll need medical evaluation and blood tests to know. Suggested next steps See your primary care doctor (PCP) first. They can review meds, screen for depression and sleep problems, and order appropriate labs or refer you to an endocrinologist or urologist. Get proper testosterone testing: Timing: draw blood in the early morning (ideally 7–10 AM) when testosterone is highest. Repeat: if low, guideline-based diagnosis usually requires at least two morning measurements on different days. Core labs to request: total testosterone (morning), free testosterone or calculated free testosterone, sex hormone–binding globulin (SHBG), luteinizing hormone (LH) and follicle-stimulating hormone (FSH) to distinguish primary vs secondary causes, prolactin, TSH (thyroid), CBC and metabolic panel (glucose/lipids). Your doctor may add others as indicated. If testosterone is low, referral options: endocrinology or men’s health/urology for cause evaluation and discussion of treatment risks/benefits. Common alternative causes to consider Depression or other mental-health conditions Poor sleep or obstructive sleep apnea Medications (SSRIs, opioid pain meds, spironolactone, finasteride, some antipsychotics) Thyroid problems Chronic illnesses, obesity, alcohol or substance use Nutritional deficiencies or anemia Lifestyle measures that often help Improve sleep quantity/quality; address possible sleep apnea Regular resistance exercise and maintain healthy body weight Reduce excess alcohol; avoid anabolic steroids or illicit drugs Treat depression or anxiety if present Testing and services you can use (brand examples) Lab services for in-person draws: Quest Diagnostics, LabCorp — widely available and accepted by doctors/insurance. Home or direct-to-consumer testing (convenient but confirm low results with your doctor): LetsGetChecked, Everlywell. These can be useful initial screens but see a clinician for abnormal results. Telemedicine men’s-health clinics that offer evaluation and treatment options (including testosterone therapy) if you prefer remote care: Hims, Roman — they can be convenient but make sure they perform full evaluation and labs and discuss risks; for complicated cases see a specialist. For sleep evaluation: contact a sleep clinic or companies like ResMed (for CPAP equipment) after diagnosis. For mental-health care: BetterHelp or Talkspace if you want remote therapy, or ask your PCP for local referrals. For specialist care and complex cases consider academic centers or networks (e.g., Mayo Clinic) or local endocrinologists/urologists. Important precautions Don’t start testosterone therapy without proper evaluation. TRT can help men with confirmed low testosterone and symptoms, but it has risks (fertility suppression, erythrocytosis, possible cardiovascular concerns) and needs monitoring. Avoid over-the-counter “testosterone boosters” or anabolic steroids without medical supervision. When to seek urgent care Sudden severe sexual dysfunction, breast enlargement or lumps, unexplained bruising, or other acute concerns — see your doctor promptly. If you’d like, tell me: your age, any current medications, major medical conditions, sleep quality, mood symptoms, or whether you’ve had any prior lab tests — I can help prioritize tests and next steps.

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