What did @bedroomwizard actually say?
The creator made a two-part claim: first, that absent morning erections are "a pretty key indication" of low testosterone in men, and second, that this logic applies specifically to men under 50. That framing matters. He's not saying it's one of several possible explanations. He's presenting it as a meaningful diagnostic signal, which is a stronger claim than most clinicians would make without additional context.
To be fair, he didn't say it was definitive proof. The phrase "might hit the low" leaves wiggle room. But on TikTok, that wiggle room tends to collapse when a young guy watches this and concludes his testosterone is tanked because he didn't wake up hard on a Tuesday.
Does the science back this up?
Partly, but the relationship is messier than the video implies. Nocturnal penile tumescence (NPT), which includes morning erections, is genuinely linked to testosterone in the research literature. Testosterone influences nitric oxide pathways and REM-sleep-associated erections, and studies have shown that men with clinically confirmed hypogonadism report reduced NPT frequency. Jannini et al. (2014, Journal of Sexual Medicine) noted that NPT can serve as a rough proxy for androgen activity, but they were careful to frame it as one variable among many.
Here's the problem: NPT is also suppressed by sleep deprivation, alcohol use, antidepressants (particularly SSRIs), anxiety, cardiovascular disease, and even sleeping in an unfamiliar environment. A 2021 review by Rew and Heidelbaugh in American Family Physician lists a dozen causes of erectile dysfunction unrelated to testosterone. Absent morning erections alone are not a testosterone test. They're a symptom with a long differential.
What did they get wrong (or right)?
He got the directional relationship right: low testosterone can reduce morning erections. That's real. Clinicians do sometimes ask about NPT as part of a broader sexual health history. So this isn't made-up bro science from whole cloth.
What he got wrong is the specificity. "Pretty key indication" implies that if the symptom is present, low testosterone is the likely culprit. That's not what the evidence supports. NPT loss is sensitive but not specific to hypogonadism. Attributing it to low T without ruling out sleep quality, medications, mood disorders, or vascular issues is diagnostically sloppy. The age cutoff of 50 is also arbitrary. Testosterone decline is gradual and highly individual. A 28-year-old with normal testosterone can have poor sleep and skip morning erections for a week straight. That doesn't mean his labs are low.
- The directional claim (low T can reduce NPT) is mostly accurate.
- Treating NPT absence as a "key indication" overstates the specificity of the symptom.
- The under-50 framing adds false precision to what is actually a noisy signal.
What should you actually know?
Morning erections are a useful symptom to mention to a doctor, not a home diagnostic tool. If you're noticing changes in frequency alongside other symptoms, like reduced libido, fatigue, mood changes, or difficulty maintaining erections during sex, that's a reasonable prompt to get a blood panel done. Specifically, total testosterone and free testosterone drawn in the morning (when levels peak) are the standard starting point.
The American Urological Association defines hypogonadism as total testosterone below 300 ng/dL confirmed on two separate morning draws, alongside symptoms. One symptom and one night without morning wood doesn't get you there. If you're under 50 and concerned, the right move is a lab test, not a TikTok self-diagnosis. FormBlends and similar telehealth platforms can order that panel without you having to convince a skeptical GP that you've been watching too much fitness content online.
Bottom line
@bedroomwizard is pointing at a real phenomenon but oversimplifying it in a way that could send a lot of men down an unnecessary rabbit hole. The absence of morning erections is worth noting. It is not a testosterone meter. If this video prompts someone to get their labs checked, that's fine. If it prompts someone to start researching TRT without a diagnosis, that's the problem.