Is heat Intolerance a low T side effect?

MR. evil

New Member
A little history, I was diagnosed with low T several years ago, but just recently started TRT as my wife and I were trying to conceive during that time frame. Now that we have a healthy baby girl I am taking 100mg t-cyp once a week for the past couple of months.

Short version of my question, is a common symptom of low T heat intolerance? I am an avid mountain biker and up until about several years ago, I could ride in the woods during the worst humidity of the summer. Then one day I could simply not tolerate the hot and humid conditions in the woods on a New England summer day. My body just can't keep itself cool and on several occasions I almost passed out. At that point I gave up mountain biking during the peak of the summer and stuck to road cycling only from July to the end of September. But on the road bike I can ride on a 90 degree summer day with no shade for 50 to 60 miles at a good 16 to 17 mph pace and not have any issues due to the wind from riding at speed helping cool my body off? I have also noticed more recently in the past 6 months that I easily get way too hot in my sleep and sometime sweat a lot while sleeping.
 
Yes, for some men. TRT increases thyroid hormone uptake that may make someone heat up faster. Using lower doses more frequently can help with this.
 
I had that occasionally happen to me, I would get really flushed. I attributed it to the T aromatizing and and having higher than normal estrogen levels. If your not taking an ai, and since your pinning once a week instead of twice a week, that may be it.
 
I just started TRT about 2 months ago, so what I described in my post was all pre TRT. I am still a little warm in my sleep, but it's getting better.
Additionally my doctor has told me that I know my body best and has given me permission to adjust my dosage up or down a little as I see fit and also told me I could split my weekly dosage into 2 injections if I want. I think I will give that a try starting next week.
 
Twice weekly injections are better for most guys as it maintains a more even T level and offers less conversion to E2. Just split your dose in half to 50mg and inject every 3.5 days, so Monday morning and Thursday evening as an example.
 
Thanks you this post, I never heard that TRT increases thyroid hormone uptake that may make someone heat up faster. Since starting TRT, I noticed that hot weather bothers me more, maybe it is from the testosterone.
 

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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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