A neurologist diagnosed with dementia in his 60s has revealed his first symptom. Daniel Gibbs, now 73, found out he had Alzheimer’s disease after taking a DNA test to inform his wife’s genealogy research. Besides learning where his ancestors had lived and whether his face is likely to flush after drinking alcohol, Gibbs discovered he had two copies of the APOE gene – this significantly increases your risk of developing late-onset Alzheimer’s. In 2016, his worst fears became a reality when he was diagnosed with the degenerative disease. The neurologist revealed his first warning sign on the JAM…