February 2013 PMID 23161753

A cohort effect on serum testosterone levels in Finnish men.

A Perheentupa, J Mäkinen, T Laatikainen, M Vierula, N E Skakkebaek, A-M Andersson, J Toppari

Mentions

38
Peak: 7 in Aug 2025
across 5 sources since Nov 2018

Extended reach

419,573
potential audience

Total likes

34,502

Video views

416,148

Mentions per month

Nov 2018 – Nov 2025

Where it's discussed

  • Instagram15 posts
  • Facebook12 posts
  • X / Twitter6 posts
  • TikTok3 posts
  • YouTube2 videos

AI synopsis

What people are saying

The social discussions demonstrate keen interest through references to historical testosterone levels and health implications, as seen in comments about 'fifty years ago, healthy old men had roughly 1200ng/dl' and concerns about lifestyle influences. The tone varies from skeptical to provocative, with some posts questioning the validity and impact of the research, reflecting a nuanced engagement with the topic's significance.

AgreementNeither agree nor disagree

Most discussions challenge or question the relevance of the findings, with some dismissing the study’s implications, indicating neutral agreement overall.

InterestHigh interest

Participants display high curiosity and engagement with the topic, referencing historical data and implications for health and masculinity.

EngagementModerate engagement

Some comments delve into the specifics, questioning how the data was obtained and its broader significance, showing moderate depth.

ImpactNeutral impact

While the discussions highlight important themes about testosterone decline and societal perceptions, they don't clearly suggest the research leads to immediate or widespread change.

Abstract in brief

  • The study found that Finnish men’s serum testosterone levels have declined over time, with younger generations (born 1942–1951) showing significantly lower levels than those born earlier (1913–1922), even after adjusting for body mass index (BMI).
  • As men age, testosterone and sex hormone-binding globulin (SHBG) levels naturally decrease, but the decline across birth cohorts indicates a secular trend suggesting that recent generations have lower testosterone levels regardless of age.
  • The observed hormonal changes, including lower testosterone and gonadotropin levels in more recent birth cohorts, imply possible issues at the gonadal level, but the hypothalamus-pituitary axis does not seem to be compensating appropriately, with no clear explanation provided for this recent decline in Finnish men's reproductive health markers.

Top posts

Most liked on X and Bluesky
Seal of the Apocalypse
@SealOfTheEnd · X

@halvorz @koaleszenz >https://t.co/p2IP60u4d0 How do these selection effects come to exist in population survey studies ?

Dec 22, 2020 · 1,634 followers View post →
August H
@Optimalgainer90 · X

Research shows healthy old men 50 years ago had far more testosterone that average 25 y.o males today , stop using age as a excuse for your own indiscretions . Low T is a combination of all your bad habits and life choices , change the way you think . https://t.co/4IZgpFzoHr https://t.co/mRbD1XZ4DQ

Feb 27, 2023 · 515 followers View post →
Often Correct
@OftCorrect · X

@lost_nomad__ @lymanstoneky Perheentupa A, Makinen J, Laatikainen T, Vierula M, Skakkebaek NE, Andersson AM, Toppari J. A cohort effect on serum testosterone levels in Finnish men. Eur J Endocrinol. 2013;168:227–233. doi: 10.1530/EJE-12-0288

Dec 2, 2024 · 391 followers View post →
GJStocks
@GjStocks · X

@BartsQuandry @BakerofTrades @RJRCapital Oh boy. One of those. Here's some reading for you. In summary, fifty years ago, healthy old men had roughly 1200ng/dl test naturally. Do I really have to explain the downsides to exogenous hormones? https://t.co/oeOhxayUZZ https://t.co/jwLnEELvHm https://t.co/cbAuWZ1b7b

Jun 30, 2023 · 287 followers View post →
GJStocks
@GjStocks · X

@FracSlap @duncan__c Is “cap” beta male speak for truth? Because if not, start reading. Fifty years ago, healthy old men were pushing 1200ng/dl. Don’t be weak. Be smart so you can get strong. https://t.co/oeOhxayUZZ https://t.co/jwLnEELvHm

Jun 27, 2023 · 287 followers View post →
Ved
@Andrei_Ved · X

https://t.co/qqPSDQMfzC https://t.co/2XTnSVWNP2 https://t.co/YaxWgEb1gz https://t.co/Y2eAwhzoqL https://t.co/8i8jiKH1mf https://t.co/Up7lkP9yGi https://t.co/oQ4p9gSOLg https://t.co/eAbkCI4ofI https://t.co/HQXJELu5vk

Oct 19, 2021 · 12 followers View post →

All mentions

Often Correct
@OftCorrect · X

@lost_nomad__ @lymanstoneky Perheentupa A, Makinen J, Laatikainen T, Vierula M, Skakkebaek NE, Andersson AM, Toppari J. A cohort effect on serum testosterone levels in Finnish men. Eur J Endocrinol. 2013;168:227–233. doi: 10.1530/EJE-12-0288

Dec 2, 2024 · 391 followers View post →
GJStocks
@GjStocks · X

@BartsQuandry @BakerofTrades @RJRCapital Oh boy. One of those. Here's some reading for you. In summary, fifty years ago, healthy old men had roughly 1200ng/dl test naturally. Do I really have to explain the downsides to exogenous hormones? https://t.co/oeOhxayUZZ https://t.co/jwLnEELvHm https://t.co/cbAuWZ1b7b

Jun 30, 2023 · 287 followers View post →
GJStocks
@GjStocks · X

@FracSlap @duncan__c Is “cap” beta male speak for truth? Because if not, start reading. Fifty years ago, healthy old men were pushing 1200ng/dl. Don’t be weak. Be smart so you can get strong. https://t.co/oeOhxayUZZ https://t.co/jwLnEELvHm

Jun 27, 2023 · 287 followers View post →
August H
@Optimalgainer90 · X

Research shows healthy old men 50 years ago had far more testosterone that average 25 y.o males today , stop using age as a excuse for your own indiscretions . Low T is a combination of all your bad habits and life choices , change the way you think . https://t.co/4IZgpFzoHr https://t.co/mRbD1XZ4DQ

Feb 27, 2023 · 515 followers View post →
Ved
@Andrei_Ved · X

https://t.co/qqPSDQMfzC https://t.co/2XTnSVWNP2 https://t.co/YaxWgEb1gz https://t.co/Y2eAwhzoqL https://t.co/8i8jiKH1mf https://t.co/Up7lkP9yGi https://t.co/oQ4p9gSOLg https://t.co/eAbkCI4ofI https://t.co/HQXJELu5vk

Oct 19, 2021 · 12 followers View post →
Seal of the Apocalypse
@SealOfTheEnd · X

@halvorz @koaleszenz >https://t.co/p2IP60u4d0 How do these selection effects come to exist in population survey studies ?

Dec 22, 2020 · 1,634 followers View post →
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