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Age and male fertility

Older men can father children, but male fertility declines with age just as female fertility does.
Revised on
June 6, 2025
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Antibiotics and sperm quality

Some antibiotics may affect sperm production and potentially contribute to infertility.
Revised on
June 11, 2025
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Medication for male fertility

Sperm-boosting drugs and supplements can help treat male infertility; learn what causes it and which treatments work.
Revised on
June 13, 2025
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Personalized supplements for health, vitality, and fertility: Q&A with Dean Kelly, CEO of Gainful

Personalized supplements for health, vitality, and fertility: Q&A with Dean Kelly, CEO of Gainful

Dean Kelly leads Gainful, a clean supplement brand known for transparency, zero artificial sweeteners, and rigorous testing.
Revised on
June 24, 2025
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Sperm testing & freezing for the military

Legacy partners with Upstream Fertility to support fertility pilot for active-duty service members and Veterans

Upstream launches a pilot program October 15 to measure sperm health improvements after 10 weeks of personalized coaching.
Revised on
October 7, 2025
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An estradiol patch to answer the question: Can trans women recover fertility after gender-affirming hormone therapy? A provider’s guide to the research

Can trans women recover fertility after gender-affirming hormone therapy? A provider’s guide to the research

Trans and gender non-conforming people may preserve fertility before hormone therapy, as recovery after treatment isn't guarant...
Revised on
November 5, 2025
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Test, improve, and freeze your sperm from home.

Any clinician can send a patient to our website to order a kit. But healthcare providers in the Legacy Network can get:

Understand your fertility with the most advanced sperm analysis

Improve your sperm with science-backed supplements

Freeze your sperm with secured multi-site storage standard

Find your plan