When answering this question, you can talk about both physical and mental effects. Stress can lead to health problems like headaches, trouble sleeping, high blood pressure, and even heart disease if it lasts a long time. It can also affect mental health, making people feel anxious, depressed, or easily irritated. You can mention that while a little stress can sometimes motivate people, too much stress is usually harmful to overall well-being. Giving examples, like students feeling stressed before exams and getting sick more easily, can make your answer more relatable.