Gen Alpha boys might not feel so “alpha” when they hear the depressing claim about their sperm. “In 1970, men had twice the sperm count as our teenagers do today,” Health and Human Services Secretary Robert F. Kennedy Jr. declared on Monday while joining President Trump at a maternal healthcare event in the Oval Office . This isn’t the first time Kennedy, 72, has made claims about male fertility. He  told Fox News’ Jesse Watters a year ago that, “A teenager today, an American teenager, has less testosterone than a 68-year-old man. Sperm counts are down 50%.” Health and Human Services Secretary Robert F. Kennedy Jr. takes questions during an event with President Trump on maternal healthcare in the Oval Office on May 11, 2026. Getty Images The theory that there’s been a worldwide decline in sperm counts over the last 50 years has been the subject of great debate in the medical community.…