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Learn More →Symptom Analyzer
Low T, Aging, or Just Stressed? What's Actually Causing Your Symptoms
Fatigue, low libido, and brain fog can come from low testosterone, metabolic decline, or lifestyle factors — and they overlap. Check your symptoms below across 3 domains to see which category dominates. Your results point to targeted solutions instead of guessing.
Check every symptom you're experiencing:
HORMONAL
METABOLIC
LIFESTYLE
Your Symptom Breakdown
Hormonal
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Metabolic
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Lifestyle
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Share your result
Most men attribute all symptoms to "low T" — but the real cause may be metabolic or lifestyle.
Important: This symptom analyzer provides educational categorization only. Symptoms of low testosterone overlap significantly with depression, thyroid disorders, sleep apnea, vitamin deficiencies, and chronic stress. Only a licensed physician can diagnose the cause of your symptoms. If you're experiencing persistent fatigue, mood changes, or sexual dysfunction, consult your doctor. Sermorelin and NAD+ are available through Strut's telehealth platform after physician evaluation. Individual results vary.
Common Questions About Low T vs Aging vs Stress
How do I know if I have low testosterone?
The only definitive test is a blood test measuring total and free testosterone. Normal range is 300-1,000 ng/dL. Symptoms below 300 ng/dL include low libido, ED, fatigue, muscle loss, and mood changes. But these same symptoms can be caused by aging, stress, poor sleep, or other conditions — this discriminator helps identify the most likely driver.
Can stress cause the same symptoms as low testosterone?
Yes — chronic stress elevates cortisol, which suppresses testosterone production and mimics low T symptoms including fatigue, brain fog, low libido, and irritability. The overlap is significant enough that many men treated for low T actually have stress-driven symptoms. This checker weighs symptoms across all three domains to identify the most likely cause.
Do I need TRT or can Sermorelin help?
If your testosterone is clinically low (confirmed by blood test), TRT is the standard treatment. Sermorelin targets growth hormone, not testosterone — it addresses a different pathway. The two are often complementary. If your T is normal but energy, recovery, and body composition are declining, Sermorelin targets the growth hormone decline that starts around age 30.