He never really had to miss any time. That is the weird part. His heart ailment was 100% fixable. It is probably the easiest fixed heart ailment there is. He had an extra electrical pathway in his heart which would sometimes cause an irregular beat. If he just would have had the extra pathway ablated then his heart would have gone back to perfect working order (This procedure can be done via catheterization, meaning they go through a vein in your leg up to your heart. recovery time is like 2 weeks due to the incision in your leg, 0 recovery time for the heart itself). He said he was freaked out by that procedure even though it actually isn't even that uncommon.