(Metro) - Champagne usually marks a memorable occasion for most of us – but scientists are now claiming three glasses a week can help to ensure it’s a memory that lasts. Researchers say that a healthy dose of bubbly can help against brain disorders such as Alzheimer’s Disease and dementia. Jeremy Spencer, a biochemistry professor at Reading University, said anyone over 40 would be wise to drink two or three glasses a week. ‘Dementia probably starts in the 40s and goes on to the 80s,’ he said.