The core way in which I understand that tenet to apply is the belief that prayer and faith are more effective than medicine and that medicine makes prayer less effective. It's basically a religious placebo effect, wherein if you believe it works, it works (sometimes).
BTW, Creation is in the Bible. Creationism is not. Nowhere in the Bible does it say that the Earth is only 6,000 years old. "In the beginning, God created the heavens and the earth." No time frame given there. The first creative day could've begun eleventy-jillion years after the creation of the earth. And each creative "day" could've lasted for thousands of thousands of years. The Bible does not say nor imply that each one was a mere 24 hours.
Also - what "scientifically accurate information" are there supposed in the Bible, that weren't known to humans at that time?
Also, it's 100% false that there is any scientific knowledge in the Bible not available to people at the time. There are quite a few things written in the Bible, however, that are scientifically inaccurate.
Christian Science is it's own religious tradition, somewhat inspired by mainstream Christianity, with its own latter-day self-styled prophet making it very similar to Mormonism, the Jehovah's Witnesses, the Moonies, Islam, and the Branch Davidians. It also bears similarities to many new-age religious movements in its ideas about metaphysics.
They really ought to come up with a better name for it. Eddyism, maybe. Because "Christian Science" is, as you can see, confusing to a lot of people.