A coworker of mine who was training for an Ironman Triathlon started feeling EXTREMELY FATIGUED and unmotivated. He got got some blood work done, and here are the results. I would appreciate some feedback ... as to what might be causing his SHBG to be so high ? His total T seems fantastic, but his SHBG seem to be cancelling it out. I myself (50yr, 5'7", 180lbs) started TRT because my SHBG was ridiculously high, and my Free T and Estradiol were low and I also had osteopenia and osteoporosis. (I'm all dialed in and feeling great now I kinda wonder if an environmental factor may be at play causing the high SHBG ? The only things the two of us have in common are ... we are both truck drivers, work nights .. 12hrs average, but can go to 14 - 16 hours sometimes. We are both also lifelong fitness freaks. He is into endurance/cardio. I'm into lifting. Any thoughts or suggestions would be greatly appreciated.
Testosterone total 938 H (302-903)
Testosterone free 103 L (47-244)
Testosterone % free 1.1 L (1.6-2.9)
DHEA-S 154 (80-560)
Ferritin 20 L (23-322)
Iron 174 H (50-160)
Estradiol 70 H (0-40)
SHBG 91 (13-110)
TSH .93 (.33-4.70)
FT3 3.1 (2.3-4.2)
FT4 .83 L (.89-1.76)
Vit D 29.8 L (30-100)
He is 40yrs old. Six feet tall. 14% body fat. He works nights (60+ hours a week) He works out religiously... mostly endurance stuff .. swim bike run. He sleeps perhaps 4-6 hours a day. He is currently NOT on any HRT/TRT. Please pardon any spelling or punctuation errors, I just got home from a 15 hour night at work.