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Low Energy / Low Libido / Poor Sleep / High Cortisol / Low (Free) T (?)

Hi guys, I would really appreciate your help. I am 29 years old. I have problems with low energy, low libido, weak erections (and no morning/spontaneous erections at all) and poor sleep (trouble falling asleep, waking up in the middle of the night). It’s been really bad in the last year, but I...
- John123
- Thread
- Jul 10, 2018
- Replies: 21
- Forum: Testosterone Basics & Questions
J
Free testosterone results interpretation

Hi guys, I have all the main low testosterone symtoms. I am 29 years old. My lab results for T are: Total T: 13,90 nmol/L Free T: 48,5 pmol/L (my lab's range for adult men: 30,15 - 189,8 pmol/L) As I understand, total T is below average, but not extremely low. What about the free T? How do...
- John123
- Thread
- Jul 6, 2018
- Replies: 4
- Forum: Testosterone Basics & Questions

TRT Hormone Predictor Widget

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