Which is the most serious health risk resulting from anorexia?

The most serious health risk resulting from anorexia is heart failure, which can occur due to the heart muscle becoming weakened from malnutrition and electrolyte imbalances. This condition can lead to arrhythmias, low blood pressure, and ultimately, cardiac arrest. Anorexia can also cause severe complications in other organs, such as the kidneys and liver, and can significantly increase the risk of death. Early intervention and treatment are crucial to mitigate these risks.