The five-second rule is as simple as it sounds and you can apply it everywhere. However, simple doesn’t mean easy.
Whenever you experience inspiration, act within five seconds to make it happen. Otherwise, your brain will kill it.
According to the rule’s author, Mel Robbins, confidence is a skill. Whenever you have a good idea to do something, it has to be followed with a physical action. Otherwise, you will have time to doubt it and it will never materialize. Remember a situation in a meeting, when you had a good idea, but hesitated to speak up. You didn’t do it, because after five seconds your brain found a better reason to stay quiet. Therefore, to act confidently, you have to be faster than your doubts.