Why some people struggle to say no even when exhausted, according to psychology

You have had a long day, your own work is unfinished, and you barely have the energy to rest. Then a colleague asks you to take on another task, a friend needs a favour or a family member expects you to make time for them. You want to say no, but instead you hear yourself saying, “Okay, I’ll manage.” For some people, this happens so often that they end up exhausted, frustrated and sometimes resentful of the very people they wanted to help. They know they have taken on too much, yet turning down the next request still feels uncomfortable.Psychologists describe this pattern as people-pleasing: repeatedly putting other people’s needs ahead of your own, even when doing so comes at a personal cost. It is not simply about being kind or considerate.