My next guest on the XL Podcast is on a spiritual and professional mission to solve one of the biggest challenges of our time – dementia. But getting there has been quite a journey. Even before we go into the burden degenerative diseases like dementia place on society and families, there are the sheer volume of cases. The WHO estimates 55 million people are living with dementia in the world today, numbers that will double within the next 20 years. And while dementia is the moniker of a successful society where people are healthier and living longer, it also places an extreme emotional and economic burden on the families and caregivers involved. John den Boer is a former clinical neuropsychologist who specializes in early stage preventative medicine