sleep cycles

3 hours of sleep and no fatigue?

For decades, the mantra has been the same: adults should aim for seven to eight hours of uninterrupted sleep each night for optimal health, performance, and longevity. From doctors to wellness influencers, the message has echoed across platforms, backed by countless studies linking insufficient...
- Vince
- Thread
- Jun 1, 2025
- sleep cycles
- Replies: 0
- Forum: Mental Health
Sleep and Testosterone dosing

Might be annectodal, but I track my sleep with my phone because of some sleep issues... I have very mild apnea only when sleeping on my back... so instead of a CPAP I sleep on my side... lol I still wake up 3 - 4 time a night but fall right back to sleep... Now I have been lowering my dose...
- Sergel
- Thread
- Nov 23, 2023
- lowering dose sleep cycles
- Replies: 6
- Forum: Testosterone Basics & Questions
N
3am erections and awake... Battling to sleep vs training at this hour to make muscle gains?

I wake up with an erection at 3am every morning, rock hard.. Usually have to masturbate to get some sleep.. Would i be better off training at this testosterone peak at 3am or battling to get back to sleep and ignore it and continue to train around mid morning or evenings... 49 year old male on...
- nauticalnomad
- Thread
- Aug 31, 2023
- androgens; aging; functional exercise training enthanate masturbation frequency sleep cycles testosterone
- Replies: 4
- Forum: Testosterone and Men's Health Articles
Anyone tracking sleep cycles/Devices/Apple Watch Ultra?

I noticed since starting creatine supplements, my time spent in core sleep has increased. I have been working out harder on certain days. Why am I spending more time in core sleep versus the other sleep cycles?
- Systemlord
- Thread
- Mar 15, 2023
- sleep cycles
- Replies: 24
- Forum: Health & Wellness

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