XY Files Blog

Evidence-based articles on testosterone, men's health, fitness, longevity, and sexual health.

Sauna health benefits for men: A safe routine for heart health and recovery

Sauna health benefits for men: A safe routine for heart health and recovery

Bruno Rodriguez, DPT, CSCS avatar
Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Oct 21, 2025 · 15 min read

Regular sauna use is associated with meaningful sauna health benefits in men, especially for cardiovascular health and blood pressure, when sessions are frequent enough to raise core temperature and are done safely.[2] The upside is real, but the best data are mostly observational, so the win comes from a repeatable routine, not extreme heat or ...

Testosterone Сypionate: Relief you can feel, but what about fertility?

Testosterone Сypionate: Relief you can feel, but what about fertility?

Alexander Grant, MD, PhD avatar
Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Oct 17, 2025 · 14 min read

Testosterone cypionate can relieve true hypogonadism (diagnosed in men with consistent symptoms plus repeatedly low morning testosterone; AUA guidance uses a total testosterone cutoff around 300 ng/dL, while EAU guidance uses about 12 nmol/L, roughly 346 ng/dL), but it commonly suppresses LH and FSH and can sharply reduce or shut down sperm production. Learn how ...

How testosterone replacement therapy injections can boost your mood

How testosterone replacement therapy injections can boost your mood

Jonathan Pierce, PhD avatar
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, ...

Veedma recovery plan for muscle gain in men: How to protect testosterone and sleep hormones

Veedma recovery plan for muscle gain in men: How to protect testosterone and sleep hormones

Bruno Rodriguez, DPT, CSCS avatar
Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Aug 06, 2025 · 14 min read

A hormone-focused recovery plan can improve muscle gain in men by supporting healthy testosterone rhythms and deep sleep growth hormone pulses while reducing chronically elevated cortisol that slows repair. If your lifts have stalled, the highest value move is often not a new program, it is better recovery habits you can track like training. “Most ...

Maximize workout results with hormone-friendly training techniques

Maximize workout results with hormone-friendly training techniques

Bruno Rodriguez, DPT, CSCS avatar
Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Aug 06, 2025 · 14 min read

You can improve strength and body composition by keeping resistance sessions short and intense—centered on compound lifts at about 70–85% of your 1-rep max with moderate volume and adequate rest—while prioritizing protein and sleep to support testosterone and growth hormone and prevent chronically elevated cortisol. Here’s how to structure training and recovery so the “builders” ...

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