The Institute for Women�s Health Research at Northwestern University has developed a private, secure database of demographic and health-related information for Illinois women age 18 and over. Through a confidential questionnaire, the Registry aims to understand the relationship between health and other factors such as lifestyle, socioeconomics, and stress. As a participant, you can help advance knowledge of gender differences in health and wellness. You can also be considered for research studies and get information from leading health professionals through the Registry�s newsletters and online blog.