Former Navy SEALs and “Extreme Ownership” authors Jocko Willink and Leif Babin talk about the importance of waking up at 4:30 am every single day.
Follow Jocko and Leif on Twitter.
Follow BI Video: On Twitter
Business Insider Emails & Alerts
Site highlights each day to your inbox.
Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.