Muscles atrophy quickly. If you lie in bed for two weeks, you might need physical therapy to walk again. That’s how fast leg muscles atrophy. The idea muscle is the same way. Use it or lose it.James AltucherThe Author of this QuoteAuthorJames AltucherI’m an entrepreneur and angel investor. I’ve achieved the rank of chess master. And I’m the author of the Wall Street Journal bestselling book “Choose Yourself.”