American actress Sydney Sweeney arrives at the premiere of “Immaculate”, Friday, March 15, 2024, in Los Angeles. (Photo by Jordan Strauss/Invision/AP Photo)
A Midshipmen from the Naval Academy eyes the Navy mascot behind her before the first half of the the 125th Army-Navy game at Northwest Stadium in Landover, Maryland, on December 14, 2024. (Photo by Danny Wild/USA TODAY Sports)
American singer Jennifer Lopez arrives to the Hollywood Reporter's Annual Women in Entertainment Gala at the Beverly Hills Hotel in Beverly Hills, California, U.S. December 3, 2025. (Photo by Allison Dinner/Reuters)
Visitors walk down the Bramante Staircase at The Vatican Museums, during a press tour at the Vatican on May 2, 2025. (Photo by Dimitar Dilkoff/AFP Photo)
In this November 28, 1966 file photo, one of the 10 beagles involved in the first test of the Veterans Administration Hospital in East Orange, N.J. smokes a cigarette through a machine linked to its windpipe by a plastic tube to test any link between smoking and emphysema. (Photo by AP Photo)
Skeleton involves a person riding a small sled down a frozen track while lying face down. The sport is a more intense form of luge because skeleton competitors leap onto the sled and slide downhill head first. Skeleton athletes can reach up to 80 mph on straightaways, causing forces up to 5g, so the helmet is a critical component for attitude as well as safety.