Visit the "Human Biology" page at "The Biology Project" website (see Resources). The site is run by the University of Arizona and is user-friendly. The subpages in the "Human Biology" section offer interactive educational tools that make learning easier. Other excellent human biological science resources can be found at the Human Genome Project's "Education Resources" page (see Resources).
Read books about human biology. Some good starting primers include "Human Biology: Concepts and Current Issues" by Michael D. Johnson and "Human Biology" by Sylvia S. Mader. Michael D. Johnson's book is especially easy to follow because it comes with a supplemental CD-ROM for interactive learning, according to Better World Books.
Take a university course in human biology for advanced learning and instructional support. This option usually will cost several hundred dollars, so it is recommended only for individuals seeking advanced biology education or individuals in need of college credit.
Stay up to date with human biological news and current issues by following Science Daily's "Human Biology News" page (see Resources). Even well-educated individuals need to stay current with the field in order to keep their knowledge fresh and relevant.