Dr Lunga, who is a neuroscientist, said that Jon suffered with depression after retiring as a journalist in 2021, which can increase the risk of dementia.

Dr Lunga, who is a neuroscientist, said that Jon suffered with depression after retiring as a journalist in 2021, which can increase the risk of dementia.

Jon Snow's wife has revealed that she 'burst into tears' when the former Channel 4 News presenter was diagnosed with dementia, and vowed that 'it is not the end' for her husband