Millionaire Bryan Johnson, CEO of a brain activity monitoring company, shares how he corrected his posture to improve blood flow to his brain. An MRI revealed that his bad posture was blocking blood flow due to genetically narrow internal jugular veins. Johnson adopted five habits, including maintaining straight posture, moving every 30 minutes, and practicing specific exercises.Millionaire Bryan Johnson, CEO of a brain activity monitoring company, shares how he corrected his posture to improve blood flow to his brain. An MRI revealed that his bad posture was blocking blood flow due to genetically narrow internal jugular veins. Johnson adopted five habits, including maintaining straight posture, moving every 30 minutes, and practicing specific exercises.