Is Your Brain Getting Enough Sleep?

Getting enough sleep is important because it helps your body and mind to recover from the day’s activities. When you’re well-rested, you’re able to think more clearly, make better decisions, and be more productive. Sleep helps to boost mental wellbeing by improving mood and memory function. A good night’s sleep can improve mood and concentration, reduce stress, and increase energy levels.

The 4 major reasons we need sleep are:

To restore and rejuvenate our bodies
To improve our moods
To increase our productivity
To protect our mental health

Poor sleeping habits are the most common cause of insufficient sleep, but there may also be underlying medical conditions that a specialist, like a psychiatrist can diagnose and treat.

There is a direct connection between sleep and brain health. Sleep is important for the brain because it allows the brain to rest and recharge. During sleep, the brain processes information from the day and consolidates memories. Additionally, sleep is necessary for healthy brain function and plays a role in mood regulation.

A deep dive on the science of sleep and the brain

As we prepare for bed, clusters of sleep-promoting neurons in many parts of the brain become more active. This happens because the body releases chemicals called neurotransmitters that activate these cells. These sleep-promoting cells help to quiet down other parts of the brain so we can get a good night’s sleep.

Neurotransmitters are chemical messengers that send signals between nerve cells, and they play a major role in regulating mood, cognition, and behavior. When we don’t get enough sleep, it can cause these neurotransmitters to become unbalanced, which can lead to issues with your brain and mental health. They are the conduit, or chemical facilitators, for sleep and play an important role in communication between the brain and other parts of the body. Therefore, it is possible that your body is ready for sleep, but your brain hasn’t gotten the message yet because of a disruption in that conduit system.

Genes are responsible for the efficient (or not) production of neurotransmitters in your body, which are essential for the proper functioning of the brain. Therefore, some people are more susceptible to developing certain disorders due to an imbalance of these key brain chemical levels – including insomnia, anxiety, or depression.

Serotonin is the neurotransmitter responsible for mood regulation, sleep, appetite, and pain sensation. It impacts all of these things because it helps to regulate the body’s circadian rhythm. This rhythm controls when we feel awake or sleepy and also how hungry or full we feel. GABA is another neurotransmitter that is associated with sleep, muscle relaxation, and sedation. When levels of GABA are low, insomnia can result. There are other neurotransmitters that play a role in sleep and wakefulness. Acetylcholine, histamine, adrenaline, cortisol, and serotonin all help to shape how we sleep and how alert we are.

Conversely, sleep deprivation can lead to an imbalance in these neurotransmitters, creating a “snowball effect” for individuals who already have an imbalance due to their genetic makeup.

How much sleep do you need?

There is no one answer to how much sleep each individual needs, as it depends on a person’s individual health and daily activities. The Sleep Foundation provides a range of hours for each age group, with the recommendations acknowledging that there may be some wiggle room on either side of the range for “acceptable” amount of sleep.

Most adults need 7 to 8 hours of good quality sleep on a regular schedule each night.
Kids need even more sleep than adults and teens need 8 to 10 hours of sleep each night.
School-aged children need 9 to 12 hours of sleep each night and preschoolers need to sleep between 10 and 13 hours a day (including naps).

Getting enough sleep isn’t only about total hours of sleep; it’s also important to get good quality sleep on a regular schedule so you feel rested when you wake up. Insomnia can include trouble falling asleep, getting up multiple times during the night, or waking up too early and being unable to fall back asleep.

How do you know if you are not getting enough sleep?

There are several key signs that you are not getting enough sleep: feeling tired during the day despite getting enough rest; having trouble concentrating; experiencing mood swings; being irritable; experiencing physical symptoms (such as headaches, dizziness, or flu symptoms). If you are experiencing any of these signs and you think you may be sleep deprived, call our offices to schedule a diagnostic consultation and get the bottom of why you struggle with sleep!

Author Angelo Sambunaris, M.D.

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Memorial Day is a time for remembrance. We gather with family, raise flags, and pause to honor the men and women who gave their lives in service to our country. But for many veterans, first responders, and the families who love them, the last Monday in May carries a different kind of weight. Behind the ceremonies and cookouts are people quietly carrying invisible wounds, the kind that don’t show up in photographs or fade with time. As a trusted Alpharetta psychiatrist, Dr. Sambunaris & Associates believe that understanding these wounds is the first step toward healing them.

Post-traumatic stress disorder, or PTSD, doesn’t discriminate. It affects combat veterans who have seen the worst of war, police officers who respond to tragedy on their darkest shifts, firefighters who run toward danger, and EMTs who hold strangers’ hands in their final moments. It also affects the spouses, children, and parents who stand beside them.

This Memorial Day, we want to take a moment to look beyond the surface and explore what PTSD really looks like, why this season can be so painful, and how we can offer the kind of support that truly matters.

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Hollywood often portrays PTSD as dramatic flashbacks and explosive reactions. While those experiences are real for some, the truth is usually quieter. Many veterans live with constant hypervigilance, scanning rooms, sitting with their backs to walls, sleeping lightly. Others struggle with emotional numbness, finding it hard to connect with the people they love most.

Nightmares, irritability, guilt over what they did or didn’t do, and a deep sense of isolation are all common. These symptoms can surface years, even decades, after service ends.

First Responders Carry Their Own Kind of Trauma

Police officers, firefighters, paramedics, and dispatchers face traumatic events as part of their regular workday. Unlike combat, which has a defined deployment, first responders return to the same scenes again and again. Over time, this repeated exposure can lead to what some clinicians call complex or cumulative PTSD.

Signs may include difficulty sleeping, increased use of alcohol, withdrawal from family activities, sudden anger, or a growing sense that “no one understands.” Many first responders feel they have to stay strong for their teams and their communities, which can make asking for help feel impossible.

Families Feel It Too

PTSD doesn’t stay contained within one person. Spouses often describe walking on eggshells, never sure what will trigger a difficult day. Children may sense tension without understanding it, sometimes blaming themselves for it. Parents of service members and first responders carry their own worry and grief.

This experience, sometimes called secondary traumatic stress, is real and deserves attention. Families heal best when they heal together, with space for everyone’s feelings to be heard.

Memorial Day Can Be Especially Hard

For someone with PTSD, Memorial Day can stir up complicated emotions. Survivor’s guilt may rise to the surface as veterans remember friends who didn’t come home. Fireworks, crowded events, and even patriotic music can become triggers. First responders may think of partners lost in the line of duty.

Families may feel torn between celebrating and grieving. Recognizing that this weekend is layered, not just festive, is an act of compassion in itself.

Meaningful Support Goes Beyond Parades and Barbecues

Honoring those who served means more than thanking them for their service. It means showing up in quiet, consistent ways. Ask how someone is really doing and be willing to listen without trying to fix. Respect their limits if crowds or loud events are too much for them.

Check in the week after Memorial Day, when the public attention fades, but the feelings remain. Learn about local support resources for veterans and first responders. Most importantly, remind the people in your life that they don’t have to carry this alone.

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There is still a quiet stigma around mental health, especially in communities built on service and toughness. But seeking help from a psychiatric professional is not a weakness. It is one of the bravest, most practical steps a person can take. Modern, evidence-based treatments for PTSD, anxiety, and depression are more effective than ever.

With the right support, people do get better. They sleep again. They laugh again. They reconnect with the people they love. No one should have to white-knuckle their way through life because they think reaching out makes them less of a soldier, officer, or parent. It doesn’t. It makes them human.

You Don’t Have to Walk This Road Alone: Talk to an Alpharetta Psychiatrist Who Understands, Dr. Sambunaris & Associates

As we honor those who have served this Memorial Day, Dr. Sambunaris & Associates extends a heartfelt thank you to the veterans of our community. As an Army veteran myself, I bring both personal understanding and professional expertise to my work with fellow service members.

I am proud to support the veteran community of North Fulton and Alpharetta, GA, offering compassionate, informed care to those navigating the lasting effects of service, including PTSD. If you or a loved one is a veteran seeking support, my team is here to help. Angelo Sambunaris, MD

This Memorial Day let us remember those who gave everything, as well as those who came home carrying wounds we cannot see. If you or someone you love is struggling with PTSD, anxiety, or depression connected to military service, first response work, or the ripple effects on family life, please know that compassionate help is available.

As an experienced Alpharetta psychiatrist practice, Dr. Sambunaris & Associates is here to listen without judgment or pressure. You can reach out to our team whenever you are ready.

Healing Is Possible, And You Don’t Have To Take The First Step Alone.

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