Twitter CEO's Heart Rate Tweet Reveals a Surprise

Twitter CEO Jack Dorsey has a novel way to prove that he took his testimony before two congressional panels on Wednesday seriously. Afterward, he tweeted a screenshot of his heart rate from his Apple Watch, reports Business Insider. The stats show that the 41-year-old's rate spiked from a resting rate of 44 beats per minute to a maximum of 109 beats per minute while he was testifying.

That's a pretty big leap, though both Business Insider and Quartz seem more impressed with Dorsey's resting heart rate—44 is close to that of a trained athlete, while the average male is typically between 60 and 100. Dorsey is known for his health-conscious lifestyle, with a regimen that includes daily exercise, meditation, and fasting. (More Jack Dorsey stories.)