Chat GPT has becomes an essential part of everyday life. It can help human solve various problems – from academic, work related issues to life hacks, and provide emotion support. Surprisingly, few articles discuss the impact of Chat GPT on human’s ability to think effectively. The brain’s primary functions include creativity, critical thinking and problem-solving. The more we think deeply about a problem, the better we become at solving other problems. If we stop engaging in deepen thinking and rely too heavy on Chat GPT, our cognitive activity may decline, leading to increased dependence on the tool. The question is: How we can capitalise on chat GPT, while still keep our brain developing.