Erectile dysfunction (ED)

Articles under this tag cover common causes of erectile dysfunction, how it relates to hormones like testosterone, and lifestyle factors such as stress, sleep, fitness, and nutrition. You’ll also find evidence-based strategies and treatment options to improve sexual performance and overall men’s health.

How testosterone replacement therapy injections can boost your mood

Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist

Aug 08, 2025 · 12 min read

In men with symptomatic hypogonadism (total testosterone below about 350 ng/dL), 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, how the shots release hormone over days, and why they’re not a cure‑all. ...

What you need to know about testosterone replacement therapy risks

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Aug 07, 2025 · 14 min read

In men with confirmed hypogonadism (total testosterone below ~350 ng/dL or free testosterone below ~100 pg/mL), properly monitored TRT hasn’t shown a major rise in heart attack or stroke risk in recent trials, but it can increase hematocrit by stimulating red blood cell production and may worsen prostate symptoms or suppress fertility over time. Here’s ...