Could be a lot things but Prinzmetal's angina is one possibility.
possible atherosclerosis, possible GERD or heartburn... could even be sleep apnea... goto your Dr and ask for a holter or heart monitor especially if it occurs nightly then it can be caught and ruled out as a heart rhythm problem, but it could still be atherosclerosis
An unexplained phenomenon occurs in lovers who look into each other's eyes for a few seconds - their heart rates synchronize with each other.Owning a pet reduces the risk of heart attacks by a third.When you listen to music, your heart rate changes and mimics the tune you are listening to.
The electrical impulse reaches all the muscle tissue in the ventricles, and the ventricles contract. This electrical conduction pattern occurs approx. every 0.8 seconds.
The duration of Heart to Heart - film - is 1260.0 seconds.
There are two types of heart murmur. Systolic murmur which occurs during contraction of the heart, and Diastolic murmur which occurs during the relaxation phase of the heart.
Same.....?
The duration of The Heart of Steel is 3240.0 seconds.
The duration of The Heart of Texas is 3600.0 seconds.
The duration of Forever in My Heart is -2700.0 seconds.
The duration of My Cheating Heart is -2700.0 seconds.
The duration of The Great Heart is 660.0 seconds.
The duration of The Mothering Heart is 1380.0 seconds.