Triathlons Can Pose Deadly Risks...
Cold water constricts blood vessels, making the heart work harder and aggravating any pre-existing problems. It also can trigger an irregular heartbeat. On top of this temperature shock is the stress of competition.
"It's quite frightening — there are hundreds of people thrashing around. You have to keep going or you're going to drown," Mosca said.
Swimmers can't easily signal for help or slow down to rest during swimming as they can in the biking or running parts of a triathlon, said Harris, who also has competed in these events. Rescuers may have trouble spotting someone in danger in a crowd of competitors in the lakes, rivers and oceans where these events typically are held, he added.
I hate triathlons.
Swim Class starts tomorrow at 6:30am.