If your chance of catching heart disease is over 10% you will be advised to go on statins.
Routine tests for breast cancer detect cancer but not the type. We can live with slow growing cancers that will not kill us. Out of 11 women diagnosed with cancer the treatment will only necessary for 1 of those, the other 10 also get the same treatment, chemotherapy, radiotherapy, that they were no need to have had and suffer all the side effects from that treatment as you would expect.
50 odd % of men over 60 have prostrate cancer, the treatment can leave them incontinent and impotent, but once again prostrate cancer is also slow growing and unlikely to kill you.
The fact is there are millions of people who live with slow growing cancer and it will not kill them, but once you go for tests and it is detected, you will receive treatment and medication that is harmful to your body, and will certainly decrease your quality of life both mentally and physically.
I watched this programme last night and if you can watch I player, I highly recommend it, as it will explain all the above and more better than I can. It is called Are Health Tests a Good Idea?
It's only available for 15 days.
http://www.bbc.co.uk/iplayer/episode/b0 ... -good-idea