You may go to bed exhausted, yet still find yourself staring at the ceiling long after the lights are out. Or you wake up feeling unrefreshed, foggy, and out of sync with your day, even when you think you’re doing everything “right.” When your sleep patterns feel unpredictable, and your energy seems chronically low, your internal clock may be struggling to stay balanced.
These disruptions are often linked to deeper cellular processes, particularly declining levels of NAD+, a vital coenzyme that helps your body regulate energy, repair, and biological timing. At Genesis Lifestyle Medicine, NAD+ therapy is part of a personalized, preventative approach to restoring balance from the inside out. Understanding how NAD+ interacts with your circadian rhythms can help you see why supporting this molecule may be key to better sleep.
How does NAD+ affect circadian rhythms?
Nicotinamide adenine dinucleotide (NAD+) is a naturally occurring coenzyme found in every cell of your body. It plays a central role in converting nutrients into usable energy, repairing DNA, and supporting hundreds of enzymatic reactions. Just as importantly, NAD+ levels rise and fall in a rhythmic pattern throughout the day, closely tied to your circadian rhythms.

Circadian rhythms are your body’s internal 24-hour cycles that regulate sleep-wake patterns, hormone release, metabolism, body temperature, and more. When NAD+ levels decline, due to aging, stress, poor sleep, or metabolic strain, these cycles can become misaligned. Over time, this may contribute to fatigue, insomnia, brain fog, and difficulty maintaining consistent energy.
Here’s how your NAD+ levels affect your circadian rhythms:
Supporting cellular energy production
Your circadian rhythms rely on a steady supply of cellular energy to function properly. NAD+ is essential for mitochondrial activity, where energy is produced within cells. When NAD+ levels are sufficient, your cells can generate energy during waking hours and then shift into repair and recovery mode at night. Low NAD+ can impair this natural transition, leaving your body “stuck” in an inefficient state. You may feel wired but tired at night or sluggish during the day.
Regulating clock gene activity
Inside each of your cells are clock genes that act as molecular timekeepers. These turn on and off in predictable patterns to coordinate circadian rhythms. NAD+ influences enzymes such as sirtuins that interact with these clock genes. When NAD+ levels are adequate, these enzymes help maintain the proper rhythm of gene expression. If NAD+ is depleted, clock gene signaling can become inconsistent, contributing to disrupted sleep cycles and irregular daily patterns.
Enhancing nighttime cellular repair
Your body performs much of its repair and regeneration while you sleep. NAD+ is required for DNA repair enzymes and other restorative processes that occur during nighttime hours. When NAD+ levels are low, your body may struggle to perform these tasks efficiently. This can lead to a cycle where poor repair contributes to poorer sleep, and poor sleep further depletes NAD+. Maintaining healthy NAD+ levels supports the nighttime restoration your body needs to reset.
Promoting metabolic rhythm stability
Metabolism follows circadian rhythms, influencing how your body processes glucose, fats, and hormones. NAD+ plays a central role in metabolic reactions. When NAD+ levels are optimized, metabolic processes are better aligned with your biological clock. This supports steady energy levels, balanced appetite signals, and improved overall circadian stability.

How NAD+ therapy can improve sleep quality
NAD+ therapy helps replenish declining levels of this essential coenzyme and supports the body’s natural biochemical pathways. At Genesis Lifestyle Medicine, NAD+ therapy is available in various forms, including patches, injections, and nasal sprays, depending on your individual care plan. By restoring NAD+ levels at the cellular level, therapy may help address several underlying factors that contribute to poor sleep and circadian disruption.
Here’s how NAD+ therapy can help improve sleep quality and circadian rhythms:
Encouraging deeper, more restorative sleep
Adequate NAD+ supports mitochondrial function and nighttime repair processes, both of which are essential for restorative sleep. When your cells can efficiently switch into recovery mode at night, you may experience longer periods of uninterrupted rest and wake up more refreshed. Many people notice improvements in sleep depth as NAD+ levels are supported.
Helping reset disrupted sleep-wake cycles
Irregular schedules, travel, stress, and aging can all throw off your internal clock. NAD+ therapy may help reinforce the molecular signals that regulate circadian timing, making it easier for your body to recognize when it’s time to wind down and when it’s time to be alert. Over time, this can lead to more consistent bedtimes, easier sleep onset, and more predictable wake times.
Reducing daytime fatigue and brain fog
Poor sleep often shows up as low energy and mental cloudiness during the day. By improving cellular energy production and supporting circadian alignment, NAD+ therapy may help reduce these symptoms. When your body’s internal clock is better synchronized, you’re more likely to experience steady energy and clearer thinking throughout the day.

Supporting stress resilience
Chronic stress can interfere with both NAD+ levels and circadian rhythms. NAD+ therapy supports enzymes involved in stress response and cellular repair, which may help your body adapt more effectively to physical and mental stressors. Improved stress resilience can make it easier for your nervous system to transition into a calm, sleep-ready state at night.
Restoring balance from the inside out
If your sleep feels inconsistent, your energy is low, and your body seems out of rhythm, declining NAD+ levels may be part of the picture. At Genesis Lifestyle Medicine, NAD+ therapy is integrated into a personalized wellness approach that supports your body at the cellular level. By addressing the link between NAD+ and circadian rhythms, you can take meaningful steps toward better sleep, improved energy, and a more balanced daily life. Contact us today to schedule your personalized consultation.





