During cardiac arrest, unconsciousness will occur rapidly once the heart stops beating, typically within 20 seconds. Deprived of the oxygen and sugars it needs to function, the brain will be unable to deliver the electrical signals needed to sustain organ function, including breathing
Answer:
smoking
Explanation:
you definitely can stop smoking or don't smoke. Bike riding isn't a cause of cardiovascular disease. You can't change or decide whether you yourself have Heart defects and genetic traits tho
Answer:
A
Explanation:
genes normally are the cause
