Healthcare workers, especially nurses, are prone to burnout, so the NHS is proactive in preventing this among their team. The interviewer is being transparent about the potential environment you may be working in and wants to know that you can be successful in this type of fast-paced setting. They want to hear that you will be able to handle the pressure and that you have experience dealing with stress in the workplace. Describe some techniques that you use to manage stress at work and give examples of how you maintain a healthy work-life balance. Examples could include taking breaks, shutting off your work phone/email where appropriate, prioritizing health and wellness, exercising, and open communication with your manager.