What is my girlfriend works too much?

As an AI language model, I do not have any personal information about your girlfriend. However, in general, working too much can have negative impacts on a person's physical and mental health. Long working hours can cause stress, anxiety, depression, and fatigue. It can also lead to a lack of work-life balance, which can result in a strained personal relationship. Encouraging your girlfriend to take breaks, prioritize self-care, and setting boundaries at work can help her achieve a healthier work-life balance.