"I'm going to run 365 miles and I'd love for as many people in this community to join me as possible," Zuckerberg wrote.
"This is a lot of running, but it's not a crazy amount," Zuckerberg wrote. "It's a mile a day, and at a moderate pace it's less than 10 minutes of running per day."
Zuckerberg has dubbed the challenge "A Year of Running" — modeling it after last year's initiative, "A Year of Books." He's even created a public Facebook group for it, "where we can all discuss our running adventures and I'll post periodically on my progress."
Don't think you can handle running every single day? You could try doing two 2-mile jogs during the work week and a 3-miler on the weekend. You could even set aside time every weekend to do one long 7-mile run.
Or you could — for the most advanced procrastinators of all — wait until there are two weeks left in the year and run a marathon every day.