allergytry new xyzal®.ou have symptoms like these for relief is as effective at hour 24 as hour one. so be wise all take new xyzal®. in the anet they are lands sits down with cards and memorizes them. he's a top athlete and also a near row scientist. >> as a field shows us, memory that's used is a memory that stays. if you don't challenge your own memory the risk of getting dementia or diseases increases. >> he works at the institute in the a the -- the latest study to understand the brains of memory