633 Days is a brand founded by Greg Lindberg, a successful entrepreneur, philanthropist, and author. With a deep passion for reinvention and transformation, Lindberg has grown hundreds of businesses, employed thousands of people, and impacted communities through philanthropic efforts. His upbringing in a loving family laid the foundation for his drive and determination.

Lindberg studied economics at Yale University, where he started his first business venture, which eventually turned into a multi-million-dollar publishing company. Throughout his career, Lindberg has acquired and transformed over 100 companies that are now worth billions of dollars. He has authored two books, including 633 Days Inside, where he shares his personal journey of overcoming challenges through fasting, cold exposure, exercise, nutrition, and more.

Lindberg's mission is to help individuals unlock their greatness by focusing on wellness, longevity, and leadership. Beyond his entrepreneurial pursuits, Lindberg is actively involved in philanthropy, supporting organizations that provide resources and opportunities for incarcerated and formerly incarcerated individuals. Visit GregLindberg.

com for more information on his life, books, and work