The Health Science Major is currently impacted, which means that students are admitted to the major by application only. The admission process is based on GPA and it is quite competitive. You can read the general process on the HS webpage - Health Science: Interested in the major
Students who are undeclared or wish to change to Health Science are encouraged to complete the Health Science Major Interest Form online and you will be notified when the next application cycle begins.
While you are still deliberating the Health Science Major I recommend that you review the different concentrations that are offered in the major, peruse the course requirements, and drop by the KIOSK outside the Health Science Office to pick up the advising forms for the concentration you are interested in. You can also find a list of approved electives, available in the KIOSK. While you are there - make the time to chat with a Peer Advisor about the major. They make great informational interviews because they understand the course progression and the major from a student perspective!
To read about the different concentrations online you may want to check out the Health Science and Recreation website and you can find the detailed descriptions of course requirements and course descriptions in the SJSU Catalog.
All of the above recommendations will help you learn more about the major, and when you still have questions, be on the look out for a group advising session. The dates for fall group advising will be made available soon - so check back.