Mel Robbins is an American author, motivational speaker, and television host, best known for her book, The 5 Second Rule. She gained popularity for her practical advice on overcoming procrastination and self-doubt, encouraging people to take action within five seconds of feeling an impulse to do something. In addition to her writing, Robbins has hosted various television shows and has delivered numerous TEDx talks. Her engaging style and relatable content have made her a sought-after speaker, inspiring audiences to make positive changes in their lives through simple, actionable strategies.