Early signs of dementia include: 1. Memory loss that disrupts daily life, such as forgetting recent conversations or events. 2. Difficulty performing familiar tasks, like cooking or managing finances. 3. Confusion about time or place, such as losing track of dates or getting lost in familiar areas. 4. Language problems, like finding the right words or following conversations. 5. Mood or personality changes, including increased irritability, anxiety, or depression.