Answer:
"heart attacks are most often caused by a sudden drop in blood pressure."
B) Becoming aware of your own reaction to it, is the first step. From there you can take steps to handle your stress like catching up on missed sleep.
Level of importance that is because you cannot
Stem cells are a class of undifferentiated cells that are able to differentiate into specialized cell types. S<span>tem cells have been found in tissues such as the brain, bone marrow, blood, blood vessels, skeletal muscles, and skin.
i hope this helps.</span>
