Poor sleep accelerates muscle and memory decline in older adults, study finds

A new study has revealed a strong link between sleep quality and the physical and mental health of older adults. Researchers found that those with better sleep patterns maintained stronger mobility and sharper cognitive function as they aged. The findings suggest sleep should be taken as seriously as other key health markers in the elderly.

The SOMNUS-DARE study, led by Salvi et al. and published in BMC Geriatrics, examined how sleep disturbances affect older people—especially those with sarcopenia, a condition of muscle loss. Participants with poor sleep showed faster declines in both movement and memory. The research team proposed that fragmented sleep disrupts muscle repair and brain plasticity, potentially speeding up the buildup of harmful proteins like amyloid-beta.

Currently, no major clinical guidelines include sleep assessments as standard practice for older adults with sarcopenia or cognitive issues. Yet the study argues that treating sleep disorders—through methods like cognitive behavioural therapy for insomnia (CBT-I) or managing sleep apnoea—could slow the progression toward disability. The authors stress that sleep should be a priority in precision ageing medicine. They recommend routine sleep screening for older adults, particularly those showing early signs of muscle weakness or memory problems. Without intervention, poor sleep may accelerate frailty and cognitive decline, much like untreated hypertension or diabetes.

The research highlights sleep as a critical factor in maintaining strength and mental clarity in later life. By addressing sleep problems early, healthcare providers could help older adults preserve independence and quality of life. The study calls for sleep to be integrated into regular geriatric evaluations, alongside other vital health checks.