The natural science major provides a broad-based program of studies in the sciences that includes basic training in biology, chemistry, physics, and mathematics and enables students to achieve advanced training in two of these areas. Since its inception, the program has been the major of choice for many students who have gone on in the health professions to become medical doctors, optometrists, chiropractors, dentists, nurses, physical therapists, and many other professionals. Because the major is very flexible, it has also been useful for students interested in a variety of other careers such as elementary school teaching, patent law, and technical writing and as a second major for many in the social sciences and humanities. Muhlenberg has several programs that can be combined with this major, including an Early Assurance Program with Temple University School of Medicine, a cooperative six-year B.S. / D.P.T. physical therapy program with Jefferson College of Health Professions of Thomas Jefferson University (TJU), and a seven-year B.S. / O.D. optometry program with the State University of New York (SUNY) State College of Optometry.