mental focus

  1. D

    Infrequent dosing to avoid shutdown…

    This might seem stupid, but here me out…. Long story short: I have treatment/lifestyle/therapy resistant depression, mental fatigue, anxiety. You name it, I’ve tried it. Believe me. Both medical and underground. Doctors are at a loss. But one day I decided to try testosterone and….. bam. Total...
  2. J

    Testosterone shots and gel usage together

    I read an article about a Dr prescribed gel and shots, with the idea that the gel would provide a quick pick up. Can't find the article. Has anyone tried this? I'm on .30 ml of 200mg test cypinate 3x weekly, 350 iu of hcg 3x weekly and .25mg of ai 3x weekly. 48yo.last lab results(3 months ago)...
  3. Nelson Vergel

    Androgel Did Not Improve Cognition in Older Men with Low Testosterone

    Effects of long-term testosterone administration on cognition in older men with low or low-to-normal testosterone concentrations: a prespecified secondary analysis of data from the randomised, double-blind, placebo-controlled TEAAM trial Summary Background The effects of testosterone on...
  4. Nelson Vergel

    The Eisenhower Decision Matrix: How to Distinguish Between Urgent and Important Tasks

    I have always loved how simple and effective his table of priorities is to save us time and make us focus on what's important. I did this once using post sticks on a door. Illuminating to say the least. Read this article from the guys at the Art of Manliness, a favorite website of mine. "Do...
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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