• A study in Neurology found that older women with significant increases in sleepiness had double the risk of developing dementia.
• The study used sleep trackers to monitor sleep patterns in 733 women in their 80s over roughly five years.
• While the link between sleepiness and dementia isn't fully understood, experts suggest it could be related to memory consolidation issues.

A new study indicates a potential link between excessive sleepiness in older adults, particularly women in their 80s, and an increased risk of developing dementia. The research, which monitored the sleep patterns of a cohort of women over a five-year period, revealed that those who experienced significant increases in daytime sleepiness, including frequent napping, were more likely to develop mild cognitive impairment and dementia. This suggests that changes in sleep patterns could serve as an early marker for cognitive decline.

• What: A study found a link between increased sleepiness in older women and a higher risk of dementia.
• Who: The study focused on 733 women in their 80s. Key people mentioned include Clifford Segil, DO, a neurologist.
• When: The study followed participants for roughly five years. The findings were recently published in the journal Neurology.
• Where: The study was likely conducted in a research setting. Dr. Segil is at Providence Saint John’s Health Center in Santa Monica, CA.

The study suggests that monitoring sleep patterns in older adults could provide valuable insights into their cognitive health. While occasional tiredness is normal, a sudden and significant increase in sleepiness, especially in older women, warrants further investigation. The link between sleep and memory consolidation could explain why sleep disturbances might contribute to cognitive decline. Other potential causes of daytime sleepiness, like sleep apnea and depression, should also be considered. Further research is needed to fully understand the mechanisms involved and to develop effective interventions.

Getting a good night’s sleep is more important for octogenarians—people in their 80s—than a good daytime nap.

The study highlights the importance of monitoring sleep patterns in older adults as a potential indicator of cognitive health. While increased sleepiness can be attributed to various factors, the study's findings suggest it could also be an early warning sign for dementia, particularly in older women. Further research is necessary to fully elucidate the relationship between sleep, memory, and cognitive decline, and to develop effective strategies for early detection and intervention.