Secretariat's heart was estimated to be about 22 pounds and was not "pathologically enlarged," Swerczek said. The average horse's heart weighs about 8.5 pounds.

Secretariat's heart was estimated to be about 22 pounds and was not "pathologically enlarged," Swerczek said. The average horse's heart weighs about 8.5 pounds. Advertisement ...

Secretariat is a racehorse known by many, even those who aren't invested in the world of racing. The historic horse set unbeatable records in all three Triple Crown races.

Secretariat’s heart — which a 1989 necropsy found weighed 22 pounds, compared to 8 1/2 pounds for the average horse — was the basis for an Audi car commercial in 2017.

Secretariat’s heart — which a 1989 necropsy found weighed 22 pounds, compared to 8 1/2 pounds for the average horse — was the basis for an Audi car commercial in 2017.

From there it veered to Jason’s suspicions about Secretariat and his abnormally large heart, a leap that elicited a sharp response from the long-dead horse’s legion of fans.

Kelce later doubled down on his assertion with a post on X (formerly Twitter), pointing to Secretariat's famously large heart, which he claimed to be a symptom of steroid use among athletes.At the ...

Secretariat's Triple Crown turns 50: Why there's no GOAT argument in horse racing Even in an era when evolution and technology have brought bigger, stronger and faster to every sport, there is no ...

They also leave pennies, a nod to Chenery, an unlikely heroine who took over her father’s farm early in Secretariat’s career and saved it with the horse’s Triple Crown run and the $6.08 ...

Secretariat sired more than 660 registered foals during the horse's life. The racehorse famously had an unusually large heart, according to The Associated Press.

Jason Kelce suggested on his "New Heights" podcast and on X that Secretariat was on steroids. Kelce's assertion generated outrage among horse-racing enthusiasts, eventually prompting an apology ...