What did @kingdomofficialpage actually say?
The creator made two distinct claims. First, that your ring finger being longer than your index finger signals high testosterone, equal length means very low testosterone, and shorter means you "probably squat to pee." Second, that average male grip strength dropped from 121 pounds in the 1980s to 93 pounds today, while women's grip strength rose from 92 to 109 pounds.
These aren't framed as possibilities or correlations. They're stated as diagnostic facts. "If this finger right here is longer than this finger, your testosterone level is high" is a confident, direct claim that millions of viewers took at face value. That framing matters, because the science tells a much messier story than this video lets on.
Does the science back this up?
Partially, on the finger ratio claim. Not really, on the grip data. The finger length claim has a real scientific basis, but the creator badly oversimplifies it to the point of distortion.
The 2D:4D ratio, which compares the length of the index finger to the ring finger, has been studied as a marker of prenatal androgen exposure. A lower ratio (longer ring finger relative to index) is associated with higher testosterone exposure in the womb. Key word: prenatal. This is about hormones you were bathed in before birth, not your current testosterone levels. Manning et al. (1998, Human Reproduction) established this connection, and it has been replicated, but the effect sizes are modest and the predictive value for any individual is weak. A 2020 meta-analysis by Galis et al. in Proceedings of the Royal Society B found the correlation exists but is far too small to be diagnostically meaningful at the individual level.
On grip strength, there is legitimate research showing declines in young men's grip strength over decades. Fain and Weatherford (2016, Journal of Hand Therapy) documented this trend in U.S. college students. But the specific numbers cited, 121 and 93 pounds for men, 92 and 109 for women, don't match any published dataset this writer could locate.
What did they get wrong (or right)?
Credit where it's due: the 2D:4D ratio is real science, and grip strength trends are a legitimate public health concern. The creator isn't making these up from nothing. But the execution is wrong in ways that matter.
Saying "your testosterone level is high" based on finger length conflates prenatal androgen exposure with adult circulating testosterone. Those are not the same thing. Your ring finger being longer than your index finger tells you something about what your mother's hormonal environment looked like decades ago. It tells you essentially nothing about what your testosterone is doing right now. Treating it as a diagnostic tool is like using your shoe size to guess your cholesterol.
The "probably squat to pee" phrasing is just mockery dressed up as biology. Having a shorter ring finger does not indicate low testosterone today, does not predict hypogonadism, and is not a reason to seek TRT.
The grip strength figures are also suspect. The general trend is real, but these exact numbers appear to be either misremembered, rounded aggressively, or sourced from somewhere unreliable. The women's numbers crossing above men's, specifically, does not appear in peer-reviewed grip strength literature.
What should you actually know?
If you're genuinely concerned about your testosterone levels, there is exactly one way to know: a blood test. Total testosterone, free testosterone, LH, FSH, and SHBG, ordered by a clinician who looks at your symptoms alongside the numbers. Finger length is not a substitute for that workup.
Low testosterone, or hypogonadism, is a real condition with real symptoms: fatigue, low libido, reduced muscle mass, mood changes, and others. It affects an estimated 2 to 6 percent of men, with higher rates in older populations, per Bhasin et al. (2010, Journal of Clinical Endocrinology and Metabolism). It is diagnosable and treatable through a licensed provider.
Grip strength declining in young men is worth taking seriously as a population-level signal, and some researchers do tie it to lifestyle factors including hormonal health. But the creator's specific statistics need sourcing before you repeat them.
Videos like this get millions of views because they offer a fast, free "test" you can do right now. The problem is that fast and free tests based on finger length are not medicine. They generate anxiety in people with normal testosterone and false reassurance in people who actually have a problem. Neither outcome is useful.