You should always stretch Before your workout. By stretching before your workout you will prevent potential injuries as well as being less sore after the workout.
Answer:
If it occurs in the coronary arteries, the end result could be a myocardial infarction (MI) or heart attack. The third way that periodontal disease can affect systemic health is that inflammation associated with periodontal disease may stimulate a systemic inflammatory response within the body.
Explanation: https://periolinks.com/2015/09/30/how-does-periodontal-disease-affect-systemic-health-a-simple-answer-to-a-complex-question/
(This link is where I got my answer)
B. oxygen is not present
anaerobic means without the presence of oxygen
