Testosterone: Miracle drug or fake science?

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Excel Male

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Low testosterone. For men, these words have the same foul odor as “impotence,” “shrinkage” or “Justin Bieber.” The topic is taboo. Throughout civilization testosterone has been prized as the lifeblood of manhood, so a deficit would imply, by definition, that we are somehow less manly.
Yet despite this ancient bias, there’s now a growing push in the medical community to help diagnose low testosterone, clear up the fog of misconceptions and treat the issue with Testosterone Replacement Therapy, or TRT.
Let’s imagine that you, or, better yet, “your friend,” is experiencing the symptoms of low testosterone: fatigue, a sense of blahness, low sex drive, an iffy stiffy. Your friend could visit Dr. Alan Shindel at the UC Davis Medical Center, who would first try and identify other possible causes. “Even men with completely normal levels of testosterone can have erectile dysfunction, low sex drive or poor energy,” says Shindel, a urology specialist. “Sometimes the cause of a man’s symptoms is just life — stress, medical conditions, relationship issues, trouble at work.”
But it could be “Low T.” Testosterone, a hormone, does more than just power your sexual engine. The body uses it to help support muscle growth, strengthen bones, regulate the count of red blood cells, boost psychological well-being and promote a healthy distribution of fat. When the average man hits 30, his testosterone levels begin falling by about 1 percent each year. As the hormones decline, the body becomes less efficient. Sometimes the side effects aren’t imagined, they’re real.
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hCG Mixing Calculator

HCG Mixing Protocol Calculator

TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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