Diagnosis
Understand the conditions linked to low testosterone, recognize the symptoms, and learn when and how to get tested.
Conditions
Testosterone deficiency is clinically linked to metabolic syndrome, cardiovascular disease, osteoporosis, depression, and more. Each guide explains the connection, diagnostic pathway, and treatment options.
Erectile Dysfunction and Low Testosterone
52% of men 40-70 experience ED, often linked to low testosterone. Learn the symptoms,...
Insulin Resistance
Learn how insulin resistance develops, key diagnostic markers like fasting glucose ≥100...
Low Testosterone
Low testosterone affects 10% of men over 40. Learn the symptoms, diagnostic criteria, and...
Medications That Lower Testosterone
Learn which medications cause low testosterone, how they suppress hormone production, and...
Symptoms
From brain fog and anxiety to weight gain and fatigue, declining testosterone produces a wide range of symptoms. Each guide explains the clinical connection, what to watch for, and when to get tested.
Erectile Dysfunction
Erectile dysfunction affects 5% of cases due to low testosterone. Learn how TRT improves...
Low Libido & Sex Drive
Low libido affects 40% of men with low testosterone below 12 nmol/L. Learn how...
Low Testosterone and Depression: The Hidden Connection
Depression affects 22.6% of men with low testosterone. Learn how hormone deficiency...
Testing
Blood tests, at-home kits, and interpreting your testosterone levels. Understanding what to test and what results mean is the first step toward treatment.
At-Home Testosterone Tests
At-home testosterone tests offer convenience but accuracy varies 26-194% vs clinical...
Optimal Testosterone Levels by Age
Age-specific testosterone ranges for men 20-50+. Learn optimal levels vs. normal, LC-MS...
Testosterone Blood Test
Complete guide to testosterone blood testing for TRT—how it works, reference ranges by...
Free vs Total Testosterone
Understand free vs total testosterone for TRT: how they're measured, reference ranges,...
Ready to take the next step?
If you're experiencing symptoms, start with our getting started guide or find a provider for evaluation.