Sats are rubbish. All you can do is do what you can to minimise known risks, cross your fingers and get on with life. But that doesn’t gurarantee that you wont get ploughed down by a bus, or have some hidden ‘defect’ from birth like a dodgy heart or brain thing that could kick in at any time.
For example a guy in my spin class, same age as me (41), fit as a fiddle, keen runner, apparently healthy in every sence, recently dropped with a near-fatal heart attack completely out of the blue. He would have been a low risk for a heart attack by any of the usual medical criteria.
The thought does cross my mind sometimes, when beasting myself in a spin class, or hauling my bike up a steep hill, if I have any underlying issue that I might be putting under stress.