Depending on what physical activity you are doing, how intense it is, and how long you are doing it.
it will probably influence your diet by making you feel more healthy
Answer:
Try not to eat as much Junk food, you still can, just not too much. [maybe like 1 bag per week or smth.]
Work out regularly.
eat veggies
Some people take up negative coping methods such as consuming too much caffeine. People with high stress often use it to jump start there energy, and make them more productive, which can lead to a caffeine addiction. Others smoke, or drink in excess which again turns into a drug habit into addiction. Some people compulsively spend money thinking material things will relieve their stress. Finally, one of the most common negative responses to stress would be emotional eating, which can lead to obesity and other health problems.
Hope that helped.