How low is just too low in relation to testosterone ranges? When Protection Secretary Pete Hegseth introduced in July 2026 that U.S. provider participants ages 30 and older can have their testosterone examined yearly, neither he nor the Pentagon specified what degree of the hormone could be regarded as “low” sufficient to require remedy – a telling omission, since the place “low” starts is dependent upon the lab engaging in the take a look at and the ideas your physician follows.
The announcement lands amid a countrywide testosterone craze: Prescriptions have climbed to almost 12 million in 2025, up 154% since 2020, and quickest amongst males of their overdue 30s and 40s. On-line clinics that promote testosterone as a way of life improve have in large part pushed this upward thrust in prescriptions.
As a psychologist who research masculinity, I’m positive that whilst the concept that extra testosterone makes a person more difficult and fitter to combat turns out intuitive, it’s additionally most commonly unsuitable.
Scientific pointers counsel towards blanket testosterone checking out.
What testosterone in reality does
Testosterone is steadily regarded as a “male” hormone, however folks of each gender produce it in differing quantities.
In cisgender boys and males, testosterone ranges upward thrust at puberty, serving to construct muscle, develop frame hair and bring sperm. Ranges naturally decline in maturity, usually starting age 30 and onward. When ranges drop considerably underneath commonplace and an individual starts to enjoy signs equivalent to excessive fatigue, low libido or drastic muscle loss, testosterone alternative remedy with clinical supervision can assist.
However “normal” is a limiteless vary. Endocrinologists believe testosterone ranges between more or less 300 to at least one,000 nanograms consistent with deciliter as wholesome. Inside of that vary, a person’s testosterone degree tells you little in regards to the “masculine” characteristics that some folks assume it governs.
Testosterone is tied to muscle groups, however in wholesome males, it doesn’t observe with precise energy – coaching, sleep and diet subject way more. As endocrinologist Adrian Dobs put it, an individual at 700 isn’t more potent or extra of a person than one at 300.
Additionally, a person’s testosterone ranges aren’t fastened – they swing by way of the hour and the season. So docs generally take a look at testosterone ranges handiest when signs seem. Screening wholesome males by way of the hundreds of thousands is also doubtlessly damaging.
The frame converts extra testosterone to estrogen.
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For example, testosterone remedy steadily carries dangers. Supplementing the hormone indicators the frame to close down manufacturing of its personal provide, which will shrink the testicles and suppress sperm. Some researchers have even studied testosterone for its contraceptive results.
Additionally, as a result of testosterone revs up oil glands and hair follicles – and partially converts them to estrogen – it may possibly additionally result in zits, balding or even some breast tissue enlargement.
This “high-T” best – offered by way of on-line clinics and now recommended from the highest – glosses over those serious dangers.
The macho fable
A long time of study undercut Hegseth’s core declare that extra testosterone manner a extra competitive, dominant, masculine guy.
A 2001 research of information from 45 research masking just about 10,000 folks discovered just a small correlation between testosterone ranges and aggression. When researchers pooled information in 2020 from experiments that in reality administered testosterone to individuals to check whether or not it reasons aggression, they discovered handiest susceptible proof. If truth be told, they noticed that the consequences of testosterone on aggression essentially confirmed up in males who have been extra dominant or impulsive.
Boys who really feel power to be manly learn how to react aggressively to perceived threats to their masculinity.
Jeff Gritchen/Virtual First Media/Orange County Check in by way of Getty Pictures
If anything else, the arrow runs the other approach – habits drives testosterone ranges. One find out about discovered that males who treated a gun for quarter-hour had larger testosterone spikes and acted extra aggressively than males who touched a board recreation. In the meantime, the testosterone ranges of latest fathers fell extra steeply the extra they bodily cared for his or her kid.
When males do exhibit aggression, the cause is usually social. In my very own analysis, threatening a person’s sense of manhood – however now not a girl’s womanhood – reliably provokes aggression, and the boys who react maximum strongly are those that really feel probably the most power to reside as much as masculine beliefs.
The hyperlink between aggression and the worry of failing at manhood takes root early. In a find out about of greater than 200 adolescent boys and their oldsters, my workforce and I discovered that boys who reacted aggressively to threats to their masculinity have been principally those that felt exterior power to be masculine. That power used to be most powerful amongst boys whose oldsters recommended particular ideals about manhood, like the concept that males will have to cling energy over others.
Biology, social power and construction paintings in combination to decide how a boy grows into a person. In contrast to Hegseth’s tale that manhood is a chemical to be crowned off, analysis presentations that whilst hormones might open a window, the social setting makes a decision what comes thru.
Army lifestyles lowers testosterone
Mockingly, the grind of army provider can force down a person’s testosterone ranges.
A 2020 find out about of U.S. Military Rangers discovered that the sleep loss constructed into coaching considerably lowered testosterone ranges.
Power rigidity, sleep deprivation, blast publicity and deficient diet can produce a cluster of well being issues known as “Operator Syndrome.” In some instances, the paintings stipulations of particular operators can push a 35-year-old’s testosterone ranges towards the ones conventional of a person in his 80s.
The strain of army lifestyles lowers testosterone ranges.
Allison Joyce/AFP by way of Getty Pictures
Realize the loop: The army imposes the very stipulations that suppress testosterone, then proposes to mend the end result with extra of it. The psychologist who named Operator Syndrome cautioned that handing troops testosterone received’t repair their well being, as a result of the actual culprits are sleep, rigidity and damage.
Double requirements
In February 2025, the Pentagon halted gender-affirming hormone remedy for transgender troops, framing such care as incompatible with the pressure’s “readiness” and “lethality.” But prescribing testosterone to convey a cisgender guy’s frame consistent with the Pentagon’s masculine beliefs is hormone remedy, too.
Prison advocates flagged the contradiction immediately: The similar elegance of drugs is disqualifying for one workforce of provider participants, however for any other, it’s rebranded as optimizing the soldier.
So a testosterone mandate received’t construct more difficult squaddies – if anything else, it finds an anxiousness no hormone can repair. My analysis argues that the boys maximum stressed to end up their manhood are those who maximum enjoy it as fragile, treating masculinity as a standing that may be misplaced and will have to be received again time and again.
Telling troops that their readiness hinges on a take a look at end result can deepen their anxiousness round manhood. Actual energy – the sort that holds up beneath hearth – isn’t one thing that may be crowned off with a hormone. Even though testosterone is biologically helpful, it isn’t the measure of a person or soldier.
