Heart emojis punctuate texts, and heart-shaped hands frame selfies on social media. Girls rarely think of their heart as an important organ that needs to be taken care of.
Atherosclerosis, the thickening of the arteries, can begin to develop as early as adolescence. Pregnant teenagers may be at high risk for preeclampsia, a condition that can cause very high blood pressure. A rapid heartbeat could be a sign of heart problems, but also of anxiety.