broken heart syndrome on blue

background syndrome broken heart blue stress cardiomyopathy takotsubo condition symptoms heartache chest pain diagnosis treatment emotional trigger trauma recovery cardiologist hospital sudden weakness heart-muscle left-ventricle function hormones anxiety depression event risk factors physical emotional-stress health episodes patients sudden-stress shock intense damage short-term long-term recovery-time breathing fatigue imaging ecg blood-tests angiogram lifestyle management cardiovascular acute fatal rare awareness research reversible non-ischemic coronary arteries hormonal stressors overload adrenaline triggers complications prognosis prevention therapy