The broken heart you're nursing this Valentine's Day is actually a recognized medical condition, quite aptly title the 'Broken Heart Syndrome'.
The Wall Street Journal says the syndrome arises when physical or emotional stress causes "concussion" of the heart, reports New Scientist.
However, the good news is: the condition is reversible. If you're broken-hearted, normal function will resume within a few weeks.
According to the Journal, the condition is "typically triggered by acute emotion or physical trauma that releases a surge of adrenaline that overwhelms the heart. The effect is to freeze much of the left ventricle, the heart's main pumping chamber, disrupting its ability to contract and effectively pump blood."
The medical term for "broken heart syndrome" is takotsubo cardiomyopathy.