THE BEDTIME HABITS THAT MAY HELP PROTECT YOUR BRAIN FROM ALZHEIMER’S AND DEMENTIA
The Evening Habits That Support Brain Health and May Lower the Risk of Dementia
The choices we make each day—whether we stay active, eat nutritious foods, or get enough quality sleep—have a profound impact on our long-term health. Among these lifestyle factors, our evening routines play a particularly important role in protecting brain health and reducing the risk of cognitive conditions such as Alzheimer’s disease and dementia.
How Sleep Supports a Healthy Brain
Healthy bedtime habits help the body and mind unwind, making it easier to achieve the restorative sleep our brains need. According to Dr. Chelsie Rohrscheib, neuroscientist and sleep specialist, consistent, high-quality sleep is essential for maintaining brain health and reducing the risk of neurodegenerative diseases. During sleep, the brain performs vital biological functions that cannot occur while we are awake. Dr. Kimberly Idoko, a board-certified neurologist, explains that sleep allows the brain to remove metabolic waste through a process known as the glymphatic system. When poor evening habits interfere with sleep, this natural cleansing process is disrupted, potentially increasing inflammation within the brain. Sleep is also critical for memory formation, learning, and the repair of brain cells and tissues. Over time, chronic sleep disruption may contribute to cognitive decline and increase vulnerability to dementia-related conditions.
Five Evening Habits to Avoid for Better Brain Health
1. Poor Sleep Hygiene
Experts recommend that adults aim for 7–9 hours of sleep each night. Research from the National Heart, Lung, and Blood Institute indicates that regularly sleeping fewer than seven hours is associated with a greater risk of health problems. Dr. Rohrscheib notes that several common habits can interfere with healthy sleep, including:
• Maintaining an inconsistent sleep schedule
• Sleeping in environments that are noisy, too warm, or overly bright
• Using electronic devices before bedtime
• Carrying daily worries and stress into bed
Improving these habits can significantly enhance sleep quality and overall brain health.
2. Drinking Alcohol Before Bed
Many people believe a bedtime drink helps them sleep, but the reality is more complicated. According to Dr. Rohrscheib, while alcohol may help a person fall asleep more quickly, it often disrupts deep, restorative sleep and increases nighttime awakenings and bathroom trips. Research also suggests that alcohol reduces REM (Rapid Eye Movement) sleep, the stage of sleep most closely associated with dreaming, memory consolidation, emotional processing, and cognitive functioning. Reduced REM sleep may negatively affect long-term brain health.
3. Consuming Caffeine Too Late in the Day
Caffeine is widely used to improve alertness and concentration, but consuming it too close to bedtime can significantly interfere with sleep. Dr. Idoko explains that caffeine blocks adenosine, a brain chemical responsible for promoting sleepiness. As a result, falling asleep and staying asleep become more difficult. A 2023 study published in Neuropharmacology highlighted the importance of adenosine in learning, cognition, sleep regulation, and brain communication—processes often impaired in Alzheimer's disease and dementia. Dr. Rohrscheib recommends avoiding caffeine and other stimulants for at least six hours before bedtime, while recognizing that individual sensitivity varies.
4. Eating Heavy, Fatty, or Spicy Foods at Night
That late-night burger or spicy meal may be enjoyable in the moment, but it can disrupt sleep later. Dr. Rohrscheib notes that heavy, rich, or spicy foods can trigger indigestion and heartburn, making it difficult to sleep comfortably. Research shows a close relationship between sleep disturbances and gastroesophageal reflux disease (GERD). Heartburn can interrupt sleep, while inadequate sleep may worsen reflux symptoms, creating an ongoing cycle of discomfort and poor rest.
5. Consuming High-Glycemic Foods Before Bed
Foods with a high glycemic index (GI)—such as white bread, white rice, sweets, and sugary beverages—cause rapid increases in blood sugar levels. Dr. Rohrscheib explains that these foods can create a sharp rise in blood sugar followed by a sudden drop. This fluctuation may trigger nighttime awakenings due to low blood sugar levels during sleep. Choosing lower-GI foods such as vegetables, whole grains, and legumes can help maintain more stable blood sugar throughout the night.
How to Create a Brain-Healthy Bedtime Routine
Supporting brain health begins with establishing an evening routine that calms the nervous system. Dr. Idoko recommends activities that help the mind transition from the demands of the day into a state of relaxation, such as:
• Dimming household lights
• Gentle stretching
• Deep breathing exercises
• Meditation or mindfulness practices
• Reading a physical book
When it comes to beverages, Dr. Rohrscheib suggests replacing alcohol and caffeine with herbal tea or a non-alcoholic mocktail. These alternatives can provide comfort without interfering with healthy sleep patterns. Food choices also matter. According to Dr. Rohrscheib, meals and snacks rich in protein and fiber help stabilize blood sugar throughout the night, reducing the risk of sleep disruptions. Keeping evening meals moderate and avoiding overeating can further promote restful sleep.
Daily Habits That Strengthen Brain Health
While bedtime routines are important, overall lifestyle habits play an equally significant role in protecting cognitive function.
Regular Physical Activity
Dr. Rohrscheib emphasizes that exercise benefits not only physical health but also brain health. Research indicates that physically active adults are less likely to experience cognitive decline than those who lead sedentary lifestyles. Most health experts recommend approximately 150 minutes of moderate-intensity exercise each week. However, vigorous exercise should be avoided too close to bedtime, as it may make sleep more difficult.
Keeping the Mind Active
Mental stimulation helps keep the brain resilient and engaged. Activities such as reading, solving puzzles, playing strategy games, learning new skills, or pursuing creative hobbies like painting, writing, or knitting may help preserve cognitive function as we age.
Maintaining Strong Social Connections
According to the Alzheimer’s Society, social isolation is associated with an increased risk of dementia. Nurturing meaningful relationships with family, friends, and community groups can support emotional well-being and cognitive health. Simple actions such as calling a friend, joining a hobby group, attending a fitness class, or volunteering can help maintain valuable social connections.
Final Thoughts
The journey toward better brain health often begins with simple daily choices. As highlighted by Dr. Chelsie Rohrscheib, Dr. Kimberly Idoko, the National Heart, Lung, and Blood Institute, and the Alzheimer’s Society, healthy sleep habits, balanced nutrition, regular exercise, mental stimulation, and social engagement all contribute to preserving memory and cognitive function. By making intentional changes to our evening routines, we can improve sleep quality today while supporting a healthier brain for years to come.
At Giving Hope Counselling Services, we believe that protecting your memory and cognitive health is just as important as caring for your physical well-being. Our experienced therapists and counsellors guide clients on evidence-based lifestyle habits that support brain health and may help reduce the risk of cognitive decline, dementia, and Alzheimer's disease. Through personalized guidance on healthy sleep, stress management, physical activity, mental stimulation, social engagement, and nutrition, we empower you to maintain a sharp mind and a fulfilling life as you age. Don't wait until memory problems arise—invest in your brain health today and let us help you build habits that support lifelong mental wellness.
Always seek our services by calling/WhatsApp at +*254721240462*/*254733932470* or email us at pkuruga@gmail.com. Also check for more informative articles on our blog on our website www.givinghope.co.ke.
*Peter Mugi Kuruga*
*Counselling Psychologist* | *Marriage and Family Therapist*
*Diploma in Counselling (MFT), B. Com., MA in Sociology (Counselling), PhD (MFT) – On going*