Exploring the science

Male fertility decline receives little attention because fertility is wrongly considered primarily a women's issue.

Male fertility issues are often overlooked when couples struggle to conceive, unfairly placing blame primarily on women.

Male fertility has declined 50-60% in two generations, yet women bear disproportionate blame for couple infertility issues.

Maternal stress during pregnancy correlates with reduced testosterone levels and sperm quality in male offspring.

Yale researchers identified a molecule that may help sperm reach and fertilize eggs.

Men pursuing fitness goals should know that steroid use for enhanced results risks infertility and serious health complications.

Sperm counts have plummeted 50% in four decades, prompting scientists to warn of a male fertility crisis.

Male subfertility affects over a third of couples, so protecting your fertility through reasonable precautions is important.

A 2019 study shows freezing testicular tissue may preserve male fertility, though extracting sperm from it remains scientifical...

Exercise and diet both matter for weight management, but nutrition habits are far more important than workouts alone.

Understanding genetics' role in fertility helps people make informed decisions about their health and family planning.

As marijuana legalization spreads across U.S. states, scientists are examining both its potential health benefits and risks.

A 2019 University of Nevada study overturns 150-year-old sperm transport theory, potentially leading to new male infertility tr...

Researchers at the University of Pennsylvania began a 2018 trial using gene-editing to enhance immune cells to fight three canc...

Adolescents exposed to chlorinated pools over 250 hours before age 10 had 300% higher rates of abnormally low testosterone.

Major Christian denominations differ on fertility treatment: Protestants allow most interventions but ban donation, Catholics r...

Kenya's fertility rate halved from eight to four children per woman over four decades, the lowest in East Africa.

Spain's 2006 law allows all women over 18 to access IVF and artificial insemination, unlike France's restrictions on single and...

Nine months after Egypt's 2011 Arab Spring revolution, birth rates surged dramatically in this already high-fertility nation.

Toxic chemical exposure, particularly phthalates in household products, significantly impairs male fertility more than female f...

High altitude's low oxygen and rapid dehydration may reduce male fertility, affecting aircraft personnel and frequent flyers di...

South Korea's densely populated youth increasingly prioritize solitude over collective gatherings, defying traditional Asian va...

Most Americans start their day with pills, though over half of all prescription medications don't work as intended.

Germany has struggled with one of the world's lowest birth rates among developed nations, though recent data shows modest impro...

Obesity and Male Fertility – Harvard Study Review Concludes Excess Weight a Threat to Sperm Production.

Islam permits infertile couples to pursue fertility treatments like IVF, provided the procedure benefits only the married coupl...

Judaism's 14 million followers across Orthodox, Conservative, and Reform traditions generally support IVF as a means to fulfill...

Women's first conception age averages 31-32 in major cities like New York and San Francisco, but 20-21 in rural areas.

A 2018 study of 656 men found connections between underwear type and testicular function markers.

Hope Solo faced backlash from Rio crowds for warning about Zika virus risks on social media during the 2016 Olympics.

China's One-Child Policy (1979–present) initially aimed to control population growth but ultimately created unforeseen social p...

Vehicle exhaust, antihistamines, and soft drinks can all negatively impact sperm quality and fertility.

Throughout history, playwrights have explored whether children inherit their parents' moral failings alongside physical traits.

Walt Disney's frozen body became the subject of urban legend, fueled by his visionary predictions about future technology and s...

COVID-19 concerns are reshaping family planning decisions as people weigh risks to pregnancy and newborn health.

Legacy partnered with Natalist to discuss fertility testing options for couples trying to conceive.

Legacy's male fertility experts discuss current research on COVID-19's effects on male fertility, pregnancy, and family planning.

Examining last year's fertility trends amid the pandemic to forecast 2021's outlook.

A Chinese study of 10,000 couples found that air pollution strongly correlates with infertility, but the mechanism remains uncl...

New COVID-19 vaccines don't affect fertility; here's what the evidence shows.

Learn what male birth control options are available now, and new options you may have in the future.

High-quality embryos are crucial for IVF success, but sperm health significantly impacts embryo quality.

Research reveals that eggs actively select sperm based on genetic compatibility, not passively waiting for the strongest to win.

Racial disparities in fertility include higher miscarriage rates and abnormal sperm parameters among certain groups.

Your environment may affect fertility; learn how location impacts your ability to build a family.

Learn about endocrine disruptors, their impact on male fertility, and practical ways to reduce your exposure.

Endocrine-disrupting chemicals threaten fertility, so learn their sources and make safe, green cleaning products to reduce expo...

Frozen sperm performs as well as fresh sperm in intrauterine insemination, according to the largest study of its kind.

Paternal age may significantly affect fertility treatment success and live birth rates more than previously recognized.

Oxidative stress reduces male fertility; this guide covers testing, reducing free radicals, and improving reproductive health.

Learn about sperm freezing history, costs, and Legacy's flexible preservation options.

Halosperm DNA fragmentation analysis showed comparable accuracy in shipped versus fresh sperm samples.

Sperm hyperactivation is a crucial step enabling fertilization; discover how it works and how to test for it.

COVID infection raises fertility concerns for patients undergoing treatment, but evidence shows minimal impact on fertility or ...

A 2022 study confirms global male fertility decline is accelerating; here's how to improve sperm health.

New research debates the time of day when sperm count is highest, and the best time of day to get pregnant.

Sperm counts are declining—discover what this male fertility crisis means and how to protect your reproductive health.

Explore the connection between nature and sperm quality and how proximity to green space can improve male fertility.

Modern fertility testing, developed through centuries of research, helps you understand your fertility and improve your overall...

Climate change affects male fertility by reducing sperm quality through environmental factors.

High semen volume may indicate hyperspermia, which can affect fertility.

Does insurance cover IVF? Find out about different types of fertility coverage you may be entitled to.

Learn how FSAs and HSAs cover fertility services including sperm testing, IVF, and sperm freezing.

The 2023 Sperm Report reveals misconceptions about fertility based on nearly 3,000 respondents and how family planning has evol...

Male fertility is affected by multiple factors that many people don't understand, but we'll explain them here.

Delayed parenthood affects male fertility, making it crucial to understand age-related reproductive changes in men.

Hormone therapy access is growing, but education about its fertility impact lags behind available preservation options.

Most people believe employers should offer fertility benefits, and good news: these benefits are increasingly becoming available.

Normal sperm counts are essential for fertility; learn testing methods and ways to improve your sperm health.

Physical labor and exercise significantly impact male fertility by affecting sperm count and testosterone levels.

Researchers discovered microplastics in human and dog testicles, raising concerns about male fertility.

A father's high-fat diet may impair his sperm health and alter his sons' metabolism.

Microplastics permeate our environment and bodies, found in water, food, and air, with unknown long-term health consequences.

Eating anthocyanin-rich dark plants may protect male fertility from microplastic damage, new research suggests.

American fathers are getting older, with men increasingly becoming parents later in life and significant variations across majo...