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Politics Progressive challenger unseats 15-term Rep. DeGette in Colorado primaryScience Archaeologists find an intact Maya city hidden in Mexico's Campeche jungleSports Mexico beat Ecuador to reach the last 16, ending a 40-year World Cup knockout waitCulture Netflix recreates Gene Wilder's voice with AI for a Willy Wonka game showTechnology Amazon to pay $2.25 million to settle FTC identity-theft records claimSports Kawhi Leonard traded to the Toronto Raptors, reuniting with his 2019 title teamCulture Twenty-five years on, Aamir Khan's 'Lagaan' is feted as a landmark of Indian cinemaBusiness US judge strikes down Trump rule limiting student-loan forgivenessPolitics Progressive challenger unseats 15-term Rep. DeGette in Colorado primaryScience Archaeologists find an intact Maya city hidden in Mexico's Campeche jungleSports Mexico beat Ecuador to reach the last 16, ending a 40-year World Cup knockout waitCulture Netflix recreates Gene Wilder's voice with AI for a Willy Wonka game showTechnology Amazon to pay $2.25 million to settle FTC identity-theft records claimSports Kawhi Leonard traded to the Toronto Raptors, reuniting with his 2019 title teamCulture Twenty-five years on, Aamir Khan's 'Lagaan' is feted as a landmark of Indian cinemaBusiness US judge strikes down Trump rule limiting student-loan forgiveness

Topic: SPF

Beach parasols providing shade from the summer sun
Science
Tuesday, 6/23, 09:36 PM

Reading the UV index: a summer guide to sun safety and SPF

  • As the Northern Hemisphere passes the longest days of the year and ultraviolet levels peak, health authorities are urging people to treat the daily UV index as a cue to protect their skin.
  • Here is what the number means, how sunscreen works, and which sun-safety beliefs the science contradicts.

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