When stress hormones such as adrenaline get increased, it can put you in stressful situations. So to manage these critical situations, you need to do physical exercise. It can be used as a surrogate to metabolize the excessive stress hormones and restore your body and mind to a calmer, more relaxed state.
Whenever you feel anxious and tense, go for a brisk walk in the fresh air. You can also try to incorporate some physical activity into your daily routine regularly. Practicing physical exercise will also improve the quality of your sleep.