Plain-language men’s health writing. From a doctor’s perspective, no hype.
Cornerstone posts on TRT, hormone optimization, medical weight loss, and longevity — written or signed off by Dr. Castellano, in plain language, without the overclaim that fills most men’s-health blogs.
Garden Grove · Mon–Fri 9 AM – 5 PM
- Pricing & Practice
How Much Does TRT Actually Cost? A Plain-English Breakdown.
Most TRT clinics evade the price question online for two reasons: pricing depends on protocol form, and pricing depends on what upsells get added. Here's how to read TRT pricing so the surprise bill doesn't show up at month two.
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- TRT Research
- Metabolic Root Cause
Low Testosterone in Men Over 40: What the Symptoms Actually Mean (and What They Don't).
The symptoms most men associate with low T — fatigue, low libido, weight gain, brain fog — overlap with a dozen non-hormonal causes. Here's how a real diagnostic panel sorts it out, and why the symptom list alone tells you almost nothing.
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- Anti-Aging Mechanisms
Why We Age: The Six Theories That Converge on Inflammation.
Roughly 300 theories of aging have been proposed; six have stayed in clinical conversation. They each frame the upstream insult differently, and they all converge on chronic inflammation — which drives the named diseases of aging. A doctor's-eye walk through the mechanisms and how the practice's four pillars map to them.
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- TRT Research
- Truth & Expectations
Do Testosterone Boosters Work?
Most over-the-counter testosterone boosters don't meaningfully raise testosterone, and a sizable share have safety issues the label doesn't mention. Dr. Castellano walks through what the literature actually shows — Clemensha, Santos, Parr — and what to do instead if symptoms are real.
Read the post →More posts publish through 2026 covering anti-aging, weight loss, and the parts of hormone work most men's-health blogs skip.
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