Welcome to the Nurses' Health Study Questionnaire website.

Please enter your ID and date of birth to login.

You can return to www.nhs1.org and enter your ID and date of birth to return to where you left off. Your previous answers will still be filled in. If you need to leave the computer for any length of time your questionnaire may 'time out'. You can return and login again and your previous answers will be saved.

If you are a family member or caregiver, please login to update information on a participant.

Participant ID:

Date of Birth:

If you do not know your ID. Please click here to look it up.

Thanks for being a participant in NHS.

If you have any questions please click here to send us an e-mail at nhs@channing.harvard.edu
or call us at (617) 525-2279, 9am-4pm Eastern time.

The information you give us will remain strictly confidential and will be used only for medical statistical purposes.

For information on confidentiality and privacy please click here.