But not everyone has the luxury of being able to sleep soundly through the night. Take the president of the United States, says Michael Jaffee, the vice chair of the Department of Neurology at the University
If you identify as an introvert, you may have written yourself off from ever becoming a great public speaker. Since, you assume, the best presenters are extroverts, electrifying crowds with their energy.
How do I know? I spent five years interviewing 177 self-made millionaires and 128 poor people and documented what I learned in something I call my Rich Habits Study. What I learned from my five-year study