Many Britons enjoy a tipple with friends and family in social situations, while others unwind by pouring themselves a drink after a hard day. But according to one doctor, a particular age group should consider cutting out the booze sooner rather than later. Over 65s might want to swap their whisky for water to protect their health. Dr Richard Restak, author of How to Prevent Dementia: An Expert’s Guide to Long-Term Brain Health, said that drinking alcohol – particularly if you’re drinking a lot of it – can have a negative impact on your health. He explained that it’s a “direct neurotoxin”, mea…