Next, they followed patients for three years to see which patients later had a cardiac arrest and needed a shock from their implantable defibrillator.

• 郎佩特称，研究人员特意询问一些问题，让病人回忆愤怒的情节。她说：“我们在实验中发现，愤怒的确会增大这些病人的心电不稳定性。”