Homepage / Currency / Sperm count falling sharply in developed world, researchers say
8 Brands & Generics Human Growth Hormone HGH Injections Find local black hookups near you what’s ssbbw chat? About Japanese Dating society and also the west Guy who would like to Date a Japanese woman – MeetKing Blog 9 Guidelines On How To Hook-up On College Gameday (At Any College) Leading Live Casino Games Provider Leading Live Casino Games Provider Pin Up Slotlarýyla Eðlence ve Para Kazanma Bir Arada The core concept of digital entertainment hub AbeBet: signature points and groups Live-сессии с дилерами в онлайн-казино azino777 How Online Gambling Enterprises Operate Around the World Meet compatible single mothers and exchange ideas official site Play airplane online Ritalin: Jak legálně zakoupit bez receptu v České republice Connect with suitable asian singles in your area How-to Date A Pornstar While Making It Operate (The Ultimate Guide) Buy Bitcoin with Credit Card or Debit Card Instantly Buy Bitcoin How to buy BTC Finding trans girls near you – the simplest way to hookup Connect with like-minded singles on a mennonite dating website Assortment of in-demand games respected casino platform abe bet casino in cyberspace Connect with girls from round the world Alexander Gambling establishment: Dйcouvrez une Nouvelle Expйrience de Jeu en Ligne Le meilleur Extra casino en ligne pour jouer BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING The simplest way to get a local hookup what’s millionairess dating? Get prepared to connect to latinas whom share your interests Estonian Chat place – an ideal Place for Dating Estonian Singles Join our bisexual chat room now and commence connecting Discover the advantages of dating a mature mom latina How to discover the best bbw hookup app for you Title: Juega en 1Win Casino Argentina Bonos y Apuestas 5 Best BBW Lesbian Dating Apps/Sites In 2022 Online Gambling Review submissions dia govt.nz Разыгрываемые джекпоты в виртуальном клубе Вулкан казино 30 Of The Greatest Adult Sex Toys For Males | Men’s Room Health Mag Australian Continent Cazino 7 slots cyberspace: conditions and rules for betting with real cash 1Win: ¡el mejor lugar de casino y apuestas deportivas de Argentina! Aufcasino ????Mature Dating Evaluation 2023 – Whatever You Need To Know About It! ???? Take the first step towards fulfilling your ebony lesbian bbw match now Ideas on how to come-out: Tips to keep in mind > Taimi Meet your perfect match – granny hookup site Türkiye-Çin İşbirliği Derinleşiyor GuGi Mobil Yükleme Seçenekleri Hizmet İçi Eğitim Sona Erdi Dooball tv ดูบอล ออนไลน์ สด 66 ลิงค์ บนมือถือ ฟรี ภาพชัด HD ทั่วโลก Find your rich cougar date in the most useful dating site Find your dream fat girl hookup today Slot Thailand Daftar Link Situs Slot Gacor Maxwin x500 Terbaru Hari Ini Resmi Auto Jackpot! Konsultasi ke Dewan Pers, Komisi I DPRD Jambi Pertanyakan Indeks Kemerdekaan Pers Jambi yang Turun Akses News Cerita Korban Judol di Balikpapan yang Nekat Gelapkan Uang How to get local horney women in your area 3 Cara Hapus Akun Judi Online Slot : Okezone Economy SITUS TOTO > Sering Kalah Main Di Situs Slot Gacor Terbaru Mudah Maxwin Situs Slot Gacor Maxwin Main Tanpa Pola Modal 5ribu Terbaik Melhores cassinos online de Novembro 2024: Confira o top 10! Enjoy amazing gay sex experiences using the top sites on the web Make the absolute most of one’s big butt dating adventure here 9 circumstances this means when a person avoids eye contact with a lady – Hack Spirit Top Greatest M4M Personals Sites in 2022 ◉ BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING Лотерейные розыгрыши в kasino on-line Лев казино: условия осуществления и доступа Main features of playing in machines at online-club Karavan Connect with like-minded females making new friends Comment accéder à des jeux gratuits avec Space fortuna bonus ? PUCUK4D⭐ Bandar Toto Togel Online & Situs Toto 4d Terpercaya #1 Betting site Karavan bet Gates of Olympus internet-based: benefits of playing for real money Discover an environment of opportunities with lesbian and bisexual dating Aprovecha Los Códigos Promocionales De Bbrbet ¡más Bonos, Más Juegos 1xbet Giriş Yeni Adresi 2024 ⭐️ 1xbahis Güncel Adres » 1x Guess Mobil Casino How to get started with sext room BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING La Application De Bbrbet: Juegos Y Apuestas Approach Alcance De Tu Man Start your love story now – join our talk to gay strangers source today BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING Find regional bbw hookups inside area BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING BLACK SEO LINKS, BACKLINKS, SOFTWARE FOR MASS BACKLINKING Mobile Casinos: The Ultimate Guide When to Take Cranberry Tablets: Morning or Evening? Online Slots Best Payout: A Comprehensive Overview for Gamblers No Download Casinos: The Ultimate Guide to Instant Play Video Gaming The Carnivore Diet Plan: A Comprehensive Guide to a Questionable Eating Plan What is CBD Lotion Used For? What are Free Penny Slot Machines? What Do Water Tablets Do: A Comprehensive Overview Online Casinos PayPal: Just How to Wager Safely and Firmly

Currency, United States Finance

Sperm count falling sharply in developed world, researchers say

Sperm counts in men from America, Europe, Australia and New Zealand have dropped by more than 50 percent in less than 40 years, researchers said on Tuesday.

They also said the rate of decline is not slowing. Both findings — in a meta-analysis bringing together various studies — pointed to a potential decline in male health and fertility.

“This study is an urgent wake-up call for researchers and health authorities around the world to investigate the causes of the sharp ongoing drop in sperm count,” said Hagai Levine, who co-led the work at the Hebrew University-Hadassah Braun School of Public Health and Community Medicine in Jerusalem.

The analysis did not explore reasons for the decline, but researchers said falling sperm counts have previously been linked to various factors such as exposure to certain chemicals and pesticides, smoking, stress and obesity.

This suggests measures of sperm quality may reflect the impact of modern living on male health and act as a “canary in the coal mine” signalling broader health risks, they said.

Studies have reported declines in sperm count since the early 1990s, but many of those have been questioned because they did not account for potentially major confounding factors such as age, sexual activity and the types of men involved.

Working with a team of researchers in the United States, Brazil, Denmark, Israel and Spain, Levine screened and brought together the findings of 185 sperm count studies from 1973 to 2011 and then conducted a so-called meta-regression analysis.

The results, published in the journal Human Reproduction Update, showed a 52.4 percent decline in sperm concentration and a 59.3 percent decline in total sperm count among North American, European, Australian and New Zealand men.

The former measures the concentration of semen in a man’s ejaculation, while the latter is semen concentration multiplied by volume.

In contrast, no significant decline was seen in South America, Asia and Africa. The researches noted, however, that far fewer studies have been conducted in these regions.

Experts asked to comment on the work said it was a comprehensive and well-conducted analysis and did a good job of adjusting for confounders that could have skewed its findings.

Daniel Brison, a specialist in embryology and stem cell biology at Britain’s Manchester University, said the findings had “major implications not just for fertility but for male health and wider public health”.

“An unanswered question is whether the impact of whatever is causing declining sperm counts will be seen in future generations of children via epigenetic (gene modifications) or other mechanisms operating in sperm,” he said in an emailed comment.

Richard Sharpe at Edinburgh University added: “Given that we still do not know what lifestyle, dietary or chemical exposures might have caused this decrease, research efforts to identify (them) need to be redoubled and to be non-presumptive as to cause.”

Follow CNBC International on Twitter and Facebook.

Source: cnbc
Sperm count falling sharply in developed world, researchers say

Comments are closed.