Your heart is probably stronger than you think.

[Jeff1943]

The heart is one of the strongest muscles in the body. Even when removed from the body it continues to beat for quite a while. It has back-up systems: even if the sinus node fails secondary circuits take over.

Of course we should do everything we can to keep our heart healthy. If we have a major problem we should work closely with our GP and cardiologist. Other than that we should have confidence and reassurance in the fact that the heart is not a delicate instrument, it's as tough as old boots.

[Minnie87]

100%. It’s amazing really isn’t it

[RoyMacDonald]

Not according to Google. Not even in the top 10.

largest muscle is Quadriceps femoris

Muscle Volume: 1,420 cm3

Location: Lower thigh

Common Functions: Knee extension and hip flexion

Nearby Bone: Femur

Heart is probably the hardest working though as it never stops moving in a living person.

😀 Wiki has the size of the human heart at "An adult heart has a mass of 250–350 grams "

[Jeff1943 in reply to RoyMacDonald]

Thank you for your correction, it was something I was told by a doctor. I have changed the text accordingly to read 'one of the strongest' which is supported by several online sources.

[bantam12]

"As tough as old boots" my husbands heart obviously hadn't read that page as it killed him !

[Jeff1943 in reply to bantam12]

The heart is the only muscle we use non stop 24/7 from birth to death. So it has to be tough to achieve that. Sorry about your husband.