Why Sleep Is One of the Most Powerful Tools for Your Health

Apr 25, 2026

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By Christopher Morrissey, DO, FACOS, General Surgeon, William Newton Hospital

In today’s busy world, sleep is often the first thing we sacrifice. Whether it’s staying up late to finish work or scrolling on our phones, many people underestimate just how important sleep is to their overall health.

Sleep is not simply “rest.” It is an active process where your body repairs, restores, and resets. Most adults need between seven to nine hours of sleep per night to function at their best. Consistently getting less than this can impact your immune system, increase your risk of chronic disease, and affect your mood, memory, and energy levels.

Sleep occurs in cycles made up of different stages. Early stages involve light sleep, where your body begins to relax. As you progress into deeper sleep, your body focuses on physical repair—healing tissues, building muscle, and strengthening your immune system. The final stage, known as REM (rapid eye movement) sleep, is critical for brain function, memory consolidation, and emotional regulation. A full night of quality sleep allows your body to cycle through these stages multiple times.

So how can you improve your sleep naturally?

Start by creating the right environment. A dark room signals your brain to produce melatonin, the hormone that helps regulate sleep. Minimizing exposure to blue light—especially from phones, tablets, and TVs—for at least an hour before bed can make a significant difference. Keeping your bedroom cool, typically between 60–67 degrees, also promotes deeper, more restful sleep.

Consistency matters as well. Going to bed and waking up at the same time each day helps regulate your body’s internal clock. Limiting caffeine in the afternoon and avoiding heavy meals late at night can further improve sleep quality.

Sleep is not a luxury—it is a necessity. By prioritizing good sleep habits, you can boost your immune system, improve your mental clarity, and enhance your overall health.

Sometimes the best medicine isn’t found in a bottle—it’s found in a good night’s sleep.

Editorial Notes: This article was submitted for the "Weekend Check-Up," a regular health column in the Cowley CourierTraveler penned by employees and friends of William Newton Hospital. Christopher Morrissey, DO, FACOS, a general surgeon at William Newton Hospital, is also the medical director for the William Newton Wound Healing Center and the medical director for Rejuuv Medical Spa. He also is an instructor for the Kansas College of Osteopathic Medicine in Wichita, KS, and is the owner and certified personal trainer for M9 Maximum Performance.