According to McKinsey, people usually remember one, two, three, but not four, five, six, so everything should be summarized in less than three. This is now widely circulated in the business world "30 seconds elevator theory" or "elevator speech".
You want to change your job after 3 years of hard work without a raise? Want to leave and feel the cost is high? Do you want to change jobs if it is inconsistent with the boss's values?
With the constant development of the Internet and electronic technology, sedentary looking at cell phones and computers is the most common way of office, which leads to the majority of Americans in a sub-healthy state.