A new study suggests that excessive daytime sleepiness and lack of motivation, known as motoric cognitive risk (MCR) syndrome, could be early warning signs of dementia. Addressing sleep issues early on might just be one step toward safeguarding cognitive health in later years. A new study suggests that excessive daytime sleepiness and lack of motivation, known as motoric cognitive risk (MCR) syndrome, could be early warning signs of dementia. Addressing sleep issues early on might just be one step toward safeguarding cognitive health in later years. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle