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Research reveals that male fertility declines significantly after age 35, with increased risks of miscarriage and genetic defects in offspring.

The myth of eternal male fertility has been shattered. New scientific guidelines and robust studies confirm that men, like women, face a definitive "biological clock," with age significantly degrading sperm quality and increasing genetic risks for their offspring.
For generations, the burden of fertility has been placed squarely on women, driven by the hard stop of menopause. Men, citing late-life fathers like Charlie Chaplin, assumed they were immune to the ravages of time. But nature is not so partial. Research now shows that while men may produce sperm indefinitely, the quality of that genetic material begins a steep decline much earlier than previously thought.
The data is stark. Paternal age is a critical factor in the health of a pregnancy. According to new infertility guidelines, sperm volume, motility (swimming ability), and genetic integrity begin to deteriorate around age 35. By age 45, the statistics become alarming:
This paradigm shift is changing how doctors approach infertility. It is no longer standard to simply test the woman. "When a heterosexual couple experiences fertility issues, it's equally likely due to male and female factors," notes a report from Citizen Digital. The new protocol demands simultaneous testing for both partners.
The biological clock is a human reality, not a female one. For men, this means facing the uncomfortable truth that delaying fatherhood carries genuine biological risks. The days of assuming "I have all the time in the world" are over; the clock is ticking for everyone.
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