The number of people with young-onset dementia could be even higher than current estimates suggest. AtlasStudio/ ShutterstockAround 57 million people worldwide have dementia. While most cases of dementia are diagnosed in older adults, about 7% of cases occur in people under 65. This number may be even higher as young-onset dementia continues to be under-recognised. This means many people may be missing out on the support they need. Here are five…