What did @remellgains actually say?
The creator listed three symptoms as "clear signs" of low testosterone: absence of morning erections (nocturnal penile tumescence), low energy with fatigue, and reduced libido, specifically framed as lacking "impulse to talk to a woman." The framing was direct and urgent, telling viewers to "take action immediately" if they experience any of these. That urgency is where things get medically shaky.
To be fair, the creator identified three symptoms that do appear in clinical checklists for hypogonadism. The American Urological Association and the Endocrine Society both recognize these as symptoms worth investigating. But there is a significant gap between "this symptom appears on a checklist" and "this symptom confirms low testosterone." That gap matters, and the video does not acknowledge it.
Does the science back this up?
Partially, but the relationship is messier than the video implies. Morning erections, libido, and energy do correlate with testosterone levels, but correlation is not diagnosis, and these symptoms are notoriously non-specific.
A 2010 study by Zitzmann published in Nature Reviews Urology found that reduced sexual function and fatigue were among the most commonly reported symptoms in hypogonadal men, but also noted that symptom-based screening alone has poor predictive value for confirmed low testosterone. The Endocrine Society's 2018 clinical practice guidelines (Bhasin et al., Journal of Clinical Endocrinology and Metabolism) explicitly state that diagnosis requires biochemical confirmation, not symptom assessment alone.
Morning erections specifically are influenced by sleep quality, age, cardiovascular health, medications, and psychological state. A 2012 study by Rosen et al. in Journal of Sexual Medicine found that erectile dysfunction is more strongly predicted by cardiovascular risk factors than by testosterone levels in many populations. Attributing absent morning erections to low testosterone without ruling out other causes is a shortcut that can send someone down the wrong treatment path.
What did they get wrong (or right)?
The creator gets partial credit for identifying three symptoms that clinicians genuinely use as screening prompts. That is not nothing. The AUA Symptom Checklist and the ADAM questionnaire (St. Louis et al., 2000, Metabolism) both include these exact symptoms.
What the video gets wrong is the certainty. Saying these are "clear signs" that testosterone is low is inaccurate. Depression, sleep apnea, thyroid dysfunction, anemia, and chronic illness all produce the same trio of symptoms. The American Academy of Family Physicians has cautioned repeatedly against over-reliance on symptom-based testosterone screening precisely because it leads to unnecessary testing and, worse, unnecessary treatment.
The libido framing, specifically defining libido as "impulse to talk to a woman," is also reductive. Libido is a complex biopsychosocial construct. A 2016 review by Rastrelli and Maggi in Asian Journal of Andrology found that psychological factors frequently outweigh hormonal ones in driving low libido, even in men with confirmed hypogonadism.
What should you actually know?
If you recognize yourself in these symptoms, a blood test is the right next step, not a treatment decision. Total testosterone should be measured on two separate mornings before 10 a.m., because levels fluctuate throughout the day. The Endocrine Society defines low testosterone as below 300 ng/dL, but clinical context matters. A man at 290 ng/dL who feels fine is a different case than a man at 290 ng/dL with multiple symptoms.
These are the things the video skips entirely:
- Symptoms alone do not diagnose hypogonadism. Lab confirmation is required.
- Other conditions, including thyroid disorders, depression, and sleep apnea, mimic low testosterone almost exactly.
- Free testosterone, LH, FSH, and SHBG levels all affect how your body uses testosterone, and total testosterone alone can be misleading.
- A qualified clinician, not a TikTok checklist, should interpret your results.
The urgency to "take action immediately" based on a 60-second video is genuinely concerning. Acting on symptom guesses without bloodwork can delay diagnosis of real conditions that need different treatment entirely.