What freediving can reveal about human health — and our limits
Freediving, an extreme underwater activity, provides insights into human health, particularly lung and heart function. The tragic death of Tucker Francis from a hypoxic blackout has prompted efforts to understand and mitigate risks associated with freediving. Research by physiologists aims to improve safety measures for both recreational and competitive freedivers worldwide.
- ▪Tucker Francis died during a recreational freedive due to a hypoxic blackout.
- ▪The Francis family is working with researchers to reduce the risk of blackouts among freedivers.
- ▪Freediving has been practiced for thousands of years by various indigenous peoples for foraging.
- ▪Competitive freediving has gained popularity since the 1970s, with millions participating globally.
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Health & Medicine What freediving can reveal about human health — and our limits The extreme activity offers clues to lung and heart function that may improve treatments for common conditions Illustration by Xiao Hua Yang By Elizabeth Pennisi 38 seconds ago Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print At 19, Tucker Francis was living his dream. About a decade earlier, he had sailed around the northwest Atlantic with his family, and his passion for the ocean and adventure blossomed. He loved snorkeling and recreational freediving, the loose term for diving deep underwater with no breathing gear.
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