While Alzheimer’s is the most common form of dementia, actor Bruce Willis’ 2022 diagnosis brought attention to frontotemporal dementia, a lesser-known disease that affects behavior, language and communication rather than memory. His wife, Emma Heming Willis, has since become an advocate for awareness and caregiver support. NewsNation’s Elizabeth Vargas spoke with her about navigating the challenges of caregiving and finding strength along the way. | NewsNation