Erectile dysfunction

Understanding the causes, prevention, and treatment of erectile dysfunction. Learn how hormonal health, cardiovascular fitness, and lifestyle factors influence sexual performance and what options are available to restore function.

Erectile dysfanction in men: The causes doctors look for and a plan that works

Erectile dysfanction in men: The causes doctors look for and a plan that works

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Nov 01, 2025 · 15 min read

Erectile dysfunction is most often treatable, and in many men it is driven by blood flow problems, pelvic floor muscle issues, or a stress anxiety loop rather than “low testosterone” alone. The bigger point is that new erectile dysfunction can also be an early warning sign of cardiovascular risk, so a real workup is worth ...

How testosterone replacement therapy injections can boost your mood

How testosterone replacement therapy injections can boost your mood

Dr. Jonathan Pierce, PhD avatar
Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist
Aug 08, 2025 · 13 min read

In men with symptomatic hypogonadism (total testosterone consistently below roughly 264 to 300 ng/dL, depending on the lab assay and reference range), testosterone injections that restore levels to the mid normal range can modestly improve mood and vitality by increasing androgen signaling in brain reward and emotional balance circuits. Here’s who’s most likely to benefit, ...

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