" Over the long term, however, too much adrenaline produces scarring on the insides of your blood vessels. These scars become magnets for molecules to accumulate, creating lumps called plaques. These can grow large enough to block the blood vessels. If it happens in the blood vessels of your heart, you get a heart attack; in your brain, you get a stroke. "

― John Medina , Brain Rules: 12 Principles for Surviving and Thriving at Work, Home, and School