What are cookies?
Cookies are files saved on your phone, tablet or computer when you visit a website.
They store information about how you use the website, such as the pages you visit.
Cookies are not viruses or computer programs. They are very small so do not take up much space.
- make our website work, for example by keeping it secure
- remember which pop-ups you've seen
- measure how you use our website, such as which links you click on (analytics cookies)
- help show you relevant health campaigns on social media
Change your cookie settings
Some cookies, like those used to measure how you use our website, are not needed for our website to work.
These cookies can help us make our website better, but we'll only use them if you say it's OK.
[Last updated: 31/03/2016]