Symptom guide

    Poor sleep and low testosterone: the two-way link

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    Poor sleep and low testosterone reinforce each other. Untangling cause from effect starts with a morning blood test and, often, a sleep study.

    Why sleep matters for testosterone

    Most of a man's daily testosterone is produced during REM sleep. Short sleep (under 6 hours) drops testosterone by 10–15% within a week. Sleep fragmentation from apnoea, alcohol, or shift work has the same effect.

    The Australian work-up

    1. Take the free ADAM screen and the STOP-BANG sleep apnoea screen.
    2. Morning fasting bloods: testosterone, SHBG, LH, FSH, FBC, TSH.
    3. If you score high on STOP-BANG or your partner reports apnoeas, request a referral for an in-lab or home sleep study.
    4. If confirmed low T after sleep apnoea is treated, endocrinology referral for PBS-subsidised TRT.

    People also ask

    Does low testosterone cause poor sleep?+

    Yes. Low testosterone is associated with reduced sleep efficiency and more night wakings. The relationship is bidirectional — poor sleep also lowers testosterone.

    Should I get tested for sleep apnoea before TRT?+

    Yes. Untreated severe obstructive sleep apnoea can worsen with TRT, and is itself a major cause of low testosterone. A sleep study is recommended if you snore, witness apnoeas, or wake unrefreshed.

    Can better sleep affect testosterone?+

    Sleep and testosterone are linked. Treating sleep apnoea and getting enough regular sleep may help some men, but results vary. A doctor can assess your sleep and arrange a sleep study if needed.

    Get matched with a men's health doctor for low testosterone

    Leave your details and a partner men's health clinic will call you at a time that suits, to talk about your symptoms and whether a blood test may be appropriate.

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    A doctor's assessment is required. Any treatment is at the doctor's discretion and only if clinically appropriate. This service is not for emergencies; if you need urgent help call 000.

    How doctor matching works across Australia

    Take the free 2-minute symptom check

    The ADAM symptom check shows whether your symptoms may be worth discussing with a doctor. You can also request a callback to get matched with a men's health doctor at a partner clinic, by telehealth or in person, for an assessment.

    Start the free assessment

    Want to talk to someone first? Read how getting matched with a doctor works.

    *Blood tests may be bulk billed where eligible, subject to doctor assessment and clinical indication.

    Sources and further reading

    These references cover the topics identified above. They do not endorse Low T Check or confirm the availability, fees or inclusions of a partner clinic. Your doctor will assess your individual circumstances.