I came across this video on stock. CNN held an interview with a company that leads the health and wellness industry. The interview was conducted on July 23, 2006 it mentions the opportunities the company has to offer. Click on the link below to watch the interview.
The following site shows that the industry of health is not doing so bad due to the economy http://biz.yahoo.com/ic/ll/514pip.html. There are many companies as well as Usana that are leading the industry in proactive health.