Eventually this mess of cholesterol, foam cells, and other debris builds up, pushing outward
from the artery wall. This cholesterol-rich "bump" looks like the pus that develops in an open
wound. As with such wounds, white blood cells rush to the site to repair the damage, forming a
hard coating, or cap, over it. Meanwhile, the bump continues to grow, eventually becoming so big
it narrows the artery, decreasing blood flow and the supply of oxygen and nutrients to the
heart. If your heart doesn't get enough oxygen-rich blood, you may feel a squeezing sensation in
your chest. This is called angina. It often happens when you exercise, because that's when your
heart needs additional oxygen.
911 Calls Gone Tragically Wrong Wrong addresses, dismissive dispatchers, and crossed signals. Our police response system is in crisis, and the cost can be measured in lives.
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