Six signs of high testosterone: what TikTok gets wrong

What did @mindoverlove3 actually say?

The creator laid out six physical and behavioral traits they say signal "high testosterone": morning erections, a deep voice, fast facial and body hair growth, easy muscle gain, natural confidence and competitiveness, and high energy and focus. Their conclusion was blunt: "If you relate to four or more of these signs, you likely have higher than average testosterone." That's a diagnostic claim, and it deserves scrutiny.

To be fair, the creator opened by pushing back on the aggression stereotype, which is a reasonable corrective. But the video then pivoted to presenting loosely associated traits as reliable hormonal indicators, without once mentioning blood testing, age, baseline health, or the fact that testosterone levels exist on a wide spectrum. That framing matters a lot when millions of young men are already primed to self-diagnose hormone imbalances from social media.

Does the science back this up?

Some of these claims have real biological grounding. Others are stretched thin. Morning erections, technically nocturnal penile tumescence, are genuinely linked to testosterone and nitric oxide signaling. But deep voice and body hair are largely locked in after puberty and reflect past androgen exposure, not current circulating testosterone.

The muscle gain claim is where things get murkiest. Yes, testosterone promotes muscle protein synthesis. But "gaining strength faster than average" is influenced by genetics, training history, sleep, nutrition, and cortisol, not testosterone alone. A 2021 review in the Journal of the Endocrine Society (Bhasin et al.) confirmed dose-dependent effects of testosterone on lean mass, but that's in controlled supplementation contexts, not free-living individuals eyeballing their gym progress. The confidence and focus claims are even harder to pin down. A meta-analysis by Geniole et al. (2019, Hormones and Behavior) found only modest correlations between testosterone and dominance-related behavior, with significant individual variability.

What did they get wrong (or right)?

Credit where it's due: morning erections as a proxy for healthy testosterone and blood flow is actually a reasonable shorthand. Clinicians do ask about this. The International Society for Sexual Medicine acknowledges nocturnal penile tumescence as a rough indicator of both vascular and hormonal health.

Where the video goes wrong is the vocal cord claim. The creator says "testosterone thickens the vocal cords, giving your voice a deeper, more grounded tone." That's true during puberty. But voice depth in adult men is not a reliable indicator of current testosterone levels. Research by Puts et al. (2012, PLOS ONE) found weak and inconsistent associations between adult male voice pitch and measured testosterone. If your voice deepened at 14, that tells you about androgen sensitivity during development, not what your total T is at 28.

The "four out of six means high testosterone" conclusion is the most problematic part. It treats correlation as confirmation. Someone could check all six boxes and still have total testosterone in the low-normal range, and vice versa. There is no validated symptom checklist that substitutes for a serum testosterone test.

What should you actually know?

If you genuinely want to know whether your testosterone is high, low, or normal, you need a blood test. Specifically, total testosterone drawn in the morning (before 10 a.m.), with a follow-up free testosterone if total is borderline. The American Urological Association defines low testosterone as below 300 ng/dL, but symptoms matter too, and context matters even more.

Normal testosterone ranges vary significantly by lab, age, and time of day. A 2017 study by Travison et al. (Journal of Clinical Endocrinology and Metabolism) highlighted how population-level reference ranges can mask meaningful individual variation. Feeling energetic and confident does not confirm you're running high T. Feeling tired and low-drive does not confirm hypogonadism either. These are starting points for a conversation with a clinician, not endpoints.

What this video does well is reduce stigma around testosterone as a health topic. What it does poorly is turn a hormone that requires laboratory measurement into a checklist you can fill out in 60 seconds. Those are different things, and conflating them is how people end up either dismissing real deficiency or chasing optimization they don't actually need.