In his very great book, Entrepreneur Revolution: How to Develop Your Entrepreneurial Mindset and Start a Business that Works, best-selling author and Entrepreneur Daniel Priestley observed that there are three key part of an ‘Entrepreneur Brain'”: The reptile, The monkey and The Entrepreneur (Visionary).

DON’T LET THE REPTILE RUN YOUR LIFE

The reptile – fight, flight freeze (emotional often in a bad way – aggression, fear, panic, etc).

If you operate from the primitive, survival part of your brain, you can expect to live like a reptile. Reptiles don’t achieve very much, they eat scraps, they crawl all over each other, they don’t evolve and they feel the cold when the winters of life come around. Reptiles are either fighting for scraps, mating or conserving energy while watching anything that moves to see if it’s good for food or sex.