When leaning to left side my fiance can feel his heart beat producing thru left side of ribs. i can physically feel it when i touch it. it beats enough my fingers move with it. when he sits up straight it doesn't happen?

It is not uncommon that you can feel the heart beat and it is easier when you turn on the left side when the heart is closer to the chest wall. That strongest point is called point of maximal impulse - PMI. When we perform a cardiac examination we also try to locate the PMI when patient is in supine flat position and its location may be helpful in the diagnosis of certain heart problems.