You may have the ability to accept or decline all cookies. Most web browsers automatically accept cookies, but you can usually modify your browser setting to decline all cookies if you prefer. Alternatively, you may be able to modify your browser setting to notify you each time a cookie is tendered and permit you to accept or decline cookies on an individual basis. It is possible to sign in to any of the Science websites without accepting cookies. If you choose to decline cookies, however, that may hinder performance and negatively impact your experience at the Science Website. 