When you exercise, your body works hard and uses up energy. This can cause a little bit of stress on your body, which is actually good for you. This stress helps your muscles become stronger, your heart become more efficient, and your body become more able to handle other stresses in your life.

On the other hand, stress from anxiety is a different kind of stress. Anxiety is a feeling of worry or fear that can be overwhelming and can affect your daily life. When you feel anxious, your body goes into "fight or flight" mode, which means it prepares itself to either run away from danger or to fight. This causes your body to release stress hormones like adrenaline and cortisol. These hormones can cause physical changes in your body, like a faster heart rate, sweaty palms, and tense muscles. These physical changes can be helpful in short bursts, but if you feel anxious for a long time, they can be harmful to your body and lead to physical problems like headaches, stomachaches, or even heart problems. It's important to find healthy ways to cope with anxiety, like talking to a trusted friend or family member, taking deep breaths, or doing something you enjoy, so that you can feel better and stay healthy.