Across
- 3. where the death rate rises after significant holidays or events
- 4. diminishes as we age
- 6. the loss of cognitive functioning to the point that it interferes with daily life
- 7. research in which the same people are restudied and retested over a long period
- 8. a study in which people of different ages are compared with one another
Down
- 1. a disease that progressively destroys memories and important mental functions
- 2. chromosome tips
- 5. culturally preferred timing of social events such as marriage, parenthood, and retirement