Health is centered in the soul not in the body.

Studying the anatomy of the body enabled humankind to excel in medical services but it did not help humankind eliminating illnesses of the soul; instead, illnesses of the soul increased.

Health is not merely the anatomical function of the body.

The consequences of ill souls in healthy bodies are wars, conflicts, rape, crimes, drug abuse, disrespect for parents, neglect of controlling desires.

Was the human race better off without scientific advances?

It is for this reason that the Bible did not teach anatomy, biology or physiology.  The Bible taught morality.