WATCH RELATED VIDEO Submit The '5:2'diet has reached out to people mostly with celebrities and the media endorsing and claiming its effectiveness in reducing blood pressure, increasing lifespan and protection against conditions such as dementia. Advertisement © 2017 HNGN, All rights reserved. Do not reproduce without permission. Advertisement 0 COMMENTS CLOSE COMMENT Get HNGN's Top Stories Newsletter Everyweek You have already subscribed. Thank you.