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What’s happened to sperm?

The Guardian· Jul 14, 2026· 28m 22s

Sperm counts are in decline worldwide, and testosterone levels are said to be plunging, but male infertility still carries a stigma. Prof Michael Carroll on what every man should know. Help support our independent journalism at <a href="https://www.theguardian.com/infocus">theguardian.com/infocus</a>

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What’s happened to sperm?

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  1. Welcome to the program. I'm your host.

    Welcome to the program. I'm your host.

    0:00

  2. Today we look at the major stories shaping the news cycle.

    Today we look at the major stories shaping the news cycle.

    0:04

  3. We start in Europe, where leaders met in Brussels.

    We start in Europe, where leaders met in Brussels.

    0:09

  4. The summit focused on energy policy and migration.

    The summit focused on energy policy and migration.

    0:14

  5. Reporting from the ground, our correspondent has more.

    Reporting from the ground, our correspondent has more.

    0:19

  6. Thank you. The mood here was tense but constructive.

    Thank you. The mood here was tense but constructive.

    0:24