OK, here're my thoughts about it and i think that ANYONE will agree.
You SHOULD do the tests, if it is possible that you can have some treatment in advance that will eliminate or highly reduce the risk of having that disease.
But you SHOULD NOT do the tests only to know what are your chances of having a particular disease in future.
Since it may happen that you get the results that there's only 1% of probablility that you will get an incurable disease....but you will actually get it.
Or according to the results, you will have 90% risk of that disese and that will change your whole life perspective and behavior....but you'll never get that disease
