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Nothing proves levels testosterone 20:
The crisis is not hormonal, but existential. However, On social networks. Similarly, the male sex is panicked: the levels of testosterone of men of 20 years today would have fallen as low as those of men of 70 years of the 1970s, according to a publication “Loved” hundreds of thousands of times.
The situation would be worrying. “Less[estostérone] = Less muscle, less libido, more fatigue and mood falls ”warns the author of the post. For example, In France. Similarly, the usual disinformation relays echoed car « This subject is very unpopular […] at a time when we prefer to attack the ‘toxic masculinity’ “. Nevertheless, Endocrine disruptors, who « rend[ent] sick men “, are designated as responsible for this statistical dive.
So, nothing proves levels testosterone 20 is testosterone evaporating from the body of young men, out of sight? Similarly, Not really: the situation is not so dramatic. Consequently, If several studies indicate a lower trend in testosterone levels over time. Furthermore, none documents a drastic and dangerous fall of this hormone in young men.
Above all, no scientific article compares cohorts made up of current twenty -year -olds with septuagenarians from 50 years ago. Consequently, Result: publication « is completely inaccurate “certifies Micheline Misrahi-Abadou, professor of molecular biology at Paris-Saclay University.
“Two studies carried out in the United States. Consequently, Denmark have shown that a 65-year-old man in 1985 has secured testosterone levels which were 17 % higher than a 65-year-old man in 2004, Restores the specialist. In addition, So there is a deficit [sur plusieurs décennies]but which is very moderate, and which mainly nothing proves levels testosterone 20 affects the elderly. In addition, »»
“The twenty -year -old fears nothing”
On average. Moreover, from 30 years old, men lose 1 % of testosterone per year according to The French Urology Association, « Which is not much “reassures Micheline Mirashi-Abadou. Therefore, This percentage increases after 60 years and can lead to notable reductions in the sex hormone. In addition, After 70 years. In addition, this decrease will however not lead to symptoms « that in 10 to 20 % of cases […]therefore a very low part [des hommes] ».
The difference with the 1980s is that there is much more obesity. which plays an important role [dans la baisse de testostérone]
Seniors can in this case be affected by hypogonadism – a decrease in the function of the sexual glands – linked to age. It nothing proves levels testosterone 20 will manifest itself, according to the person, by erection disorders, fatigue, loss of motivation, mood swings, etc.
The symptoms presented by some Internet users as well as being able to reach young people therefore exclusively concern. elderly men. « The twenty -year -old fears nothing, hypogonadism is very late in humans ”says Micheline Mirashi-Abadou.
The decline of testosterone levels over time in over 65 years is explained by the evolution of lifestyles. « The difference with the 1980s is that there is much more obesity. which plays an important role [dans la baisse de testostérone]just like other pathologies such as high blood pressure and diabetesexplains Micheline Misrashi-Abadou. But hypogonadism regresses when treated. »»
A American study showing a 25 % decrease in testosterone rates in 15-39 year olds between 1999 and 2016 reached the same conclusion. nothing proves levels testosterone 20 « The lowest values of testosterone are associated with an increase in comorbidities [des pathologies ou comportements nocifs. ndlr] »of which, in particular, obesity, note the researchers. The average testosterone rate recorded in the 2016 cohort was however in a healthy range, according to Scientific literature.
In summary. if a decrease in testosterone has been found in recent years, it is mainly linked to environmental factors and only presents risks in the elderly. Attempts to draw up the chronology of testosterone levels nevertheless leave certain skeptical scientists.
Difficult temporal comparisons
“The methods to measure testosterone has improved considerably over the past 40 years. and it is not advisable to compare levels measured by old methods with those measured with contemporary tools”entrusted to Newsweekin 2022, the American doctor and specialist in testosterone Michael Samozuk.
It nothing proves levels testosterone 20 is not possible to draw significant conclusions from time developments in [les niveaux] testosterone
In addition. there are other parameters that are difficult to weigh on longitudinal studies conducted over several decades. For example. testosterone levels, while remaining healthy, can vary greatly from one individual to another, but also in the same day. As its production by the organization is set by the circadian rhythmthe hormone is present. in greater quantity in the blood in the early morning than in the afternoon.
“In summary. unless comparative studies are strictly adjusted to age, state of health and the time for blood test, it is not possible to draw significant conclusions from time developments in [les niveaux] testosterone “says Michael Samozuk.
As for the role of endocrine disruptors in the regulation of the hormone. it is to this day that “Supposed”according to nothing proves levels testosterone 20 Micheline Misrashi-Abadou, « Except in very specific cases as with farmers who are exposed to huge concentrations of pesticides ”.
The National Institute of Research and Security classify the decrease in testosterone in the effects ” suspected ” Endocrine disruptors. But he believes that « Very few studies today make it possible to establish a clear causal link between exposure to an endocrine disruptor. the occurrence of pathologies in humans ”. The organization, however, encourages « caution “ in the use of these chemical mixtures.
Make testosterone great again
Despite the absence of solid scientific evidence. Additionally, the supposed decline in testosterone among young people has continued to panic the web for a few years. Native of the United States. psychosis linked nothing proves levels testosterone 20 to Hormones has carved out a place of choice in the masculine story propagated by far -right personalities. Tucker Carlson. former Fox News presenter and Donald Trump support – who had himself exhibited Its testosterone levels in 2016 – made it one of its battle horses.
In a documentary entitled The end of men. published in 2022, The ex-star offers young men a completely ineffective method to boost their testosterone levels: to tan their testicles.
Tucker Carlson, Fox News presenter at the National Review Institute Ideas Summit, March 29, 2019 in Washington. (Photo: SOMODEVILLA / GETTY Images via AFP)
Like this sequence. the supposed male nothing proves levels testosterone 20 hormonal crisis is, in the United States, which has become a point of fixing and meeting between the spaces devoted to the well-being of men (bodybuilding, nutrition …) and conservative political discourses centered on the reconstruction of virility, which would be besieged by progressive currents like feminism.
In 2022 déjàa popular Anglo-Saxon well-being influencer argued that “T levels[estostérone] have been at their lowest since always making men fragile. insecure of themselves, weak in energy and feminized (far from what Mother Nature wants, that is to say a primary healthy man, strong and confident!) “.
The subject reacted to the American government. “An American teenager today has less testosterone than a 68 -year -old man”said. in April 2025the Minister of Health of the United States, Robert F. Kennedy Jr, who claims to take this hormone nothing proves levels testosterone 20 in the context of his anti-aging treatment. “Testosterone levels have dropped by 50 % compared to historical levels”he even added. a few months before similar claims reappeared on social networks.
Contacted. the author of the viral publication and the United States Department of Health had not responded to our requests at the time of publication.
Nothing proves levels testosterone 20
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