You walk into a room and forget why you’re there. You lose your train of thought mid-work meeting. You might put your car keys in a place that may make no sense later. If this sounds familiar, you’re not alone.
Many pregnant and postpartum people can experience what’s commonly called “mom brain,” a term that captures forgetfulness, mental fog, and trouble focusing. It’s often brushed off as just another thing new parents have to deal with, even though it can make daily life frustrating and even concerning.
The brain is actually making an impressive and purposeful change to care for a new baby. Learn how mom brain works and hear from PrairieCare’s Sogand Ghassemi, MD, Psychiatrist and the Director of Perinatal Program Services.
What You’ll Learn
- What is “mom brain” during pregnancy and postpartum?
- How does pregnancy change the brain?
- What are the most common symptoms of mom brain?
- Why do hormones, sleep, and stress affect brain fog?
- How can mom brain be managed, and when do you get support?
Quick Read
“Mom brain” is a normal experience during pregnancy and postpartum that can include forgetfulness, mental fog, and trouble concentrating. It is not cognitive decline, but a reflection of real brain changes that support caregiving.
Hormonal shifts, sleep disruption, stress, and the mental load of caring for a newborn all contribute to these symptoms. Brain regions involved in memory, attention, and emotion temporarily adapt during this time.
For most people, mom brain is temporary and improves over time. Sleep, support, and simplifying daily routines can help. If symptoms are severe or linked with mood changes, it’s important to seek professional support.
What Is “Mom Brain”?
“Mom brain” (sometimes called mommy brain, momnesia, or baby brain) is a common, non-medical term for the cognitive changes many people experience during pregnancy and early parenthood.
Symptoms of mom brain can include:
- Forgetfulness
- Difficulty concentrating
- Mental fatigue
- Feeling “foggy” or scattered
These changes can feel unsettling in everyday life. As Dr. Ghassemi explains, the hippocampus, the part of the brain responsible for learning and memory, “undergoes temporary alterations that can affect concentration and recall,” which is why these lapses can feel so noticeable.
While it is often joked about culturally, the experience reflects real neurological changes rather than a simple lapse in ability. In other words, your brain is working for you to transition into this very big and new chapter of your life. Even though it may feel different, it’s adapting to your role as a caretaker.
Is Mom Brain Normal?
Yes, mom brain is completely normal. These cognitive changes are widely experienced and expected during pregnancy and the postpartum period. Dr. Ghassemi puts it simply: “Mom brain is not a sign of dysfunction; it is the biology of caregiving.”
Understanding this can shift the way people interpret their experience. Rather than seeing these moments as failures, they can be recognized as part of a broader, purposeful transition.
Is Mom Brain Real? What Science Actually Says
According to Dr. Ghassemi, the idea that mom brain is simply forgetfulness misses the bigger picture. “The evidence shows that these changes reflect adaptive brain development rather than cognitive decline,” said Dr. Ghassemi.
During pregnancy and postpartum, the brain is actively remodeling itself. Hormones like estrogen, progesterone, oxytocin, and prolactin reshape neural pathways. These shifts “remodel neural circuits that govern empathy, emotion regulation, and bonding,” said Dr. Ghassemi.
Furthermore, cognitive changes during pregnancy and postpartum are not signs of decline but evidence of the brain’s adaptation to new stages of life. “These changes can feel like mental slowing, but in fact represent a form of neurobiological adaptation that helps new parents care for their infants effectively,” said Dr. Ghassemi.
Pregnancy Brain vs. Mommy Brain
Pregnancy brain refers specifically to cognitive changes that occur throughout pregnancy. During this time, hormonal changes—particularly increases in estrogen and progesterone—can alter brain structure and function.
Research suggests that up to 81% of pregnant women report cognitive difficulties, especially in the third trimester, due to sleep deterioration. More recent neuroscience also shows changes in gray matter in regions tied to memory and emotional regulation.
While these changes can feel frustrating, they are temporary and purposeful. As Dr. Ghassemi emphasizes, this is part of a broader pattern of brain adaptation that supports caregiving.
Pregnancy and Postpartum Brain Fog
Brain fog is one of the most common ways people notice these cognitive shifts. Thoughts may feel harder to organize, concentration may take more effort, and multitasking can feel overwhelming.
Examples of postpartum brain fog:
- Missing an appointment you scheduled
- Forgetting passwords after returning to work
- Trouble finding words mid-conversation
When this happens repeatedly, it can feel discouraging. But as Dr. Ghassemi explains, what feels like mental slowing is often the brain reallocating energy toward caregiving demands rather than a loss of ability.
The good news is that this foggy feeling doesn’t last forever, but how long it will take to lift depends on the person. Various factors, such as stress and sleep, influence how long symptoms last. For some, it can be a few months, while for others it can last longer.
Perinatal Brain Fog: Why It Happens
The foggy feeling new moms feel is not caused by one single factor. Hormonal shifts play a role, but also the immense pressures that come with caring for a newborn.
Hormonal Shifts and Neuroplasticity
Estrogen levels drop rapidly after birth, directly affecting memory and attention. At the same time, shifts in progesterone, oxytocin, and prolactin reshape the brain.
These hormonal changes are also tied to structural brain changes. As Dr. Ghassemi notes, these fluctuations actively reshape regions involved in memory, attention, and emotional processing.
Cognitive Load and Sleep Disruption
You’re tracking feeding schedules, appointments, sleep routines, work-related tasks, family obligations, and more, often all at once.
When these demands stack on top of biological changes, the effects can feel overwhelming. This cognitive strain is often the result of the combined impact of sleep disruption and the mental load of caregiving.
Sleep deprivation plays a major role. It affects attention, memory, learning, and emotional regulation. “Fragmented or inadequate sleep is now identified as an independent risk factor for postpartum depression rather than merely a consequence of caregiving,” said Dr. Ghassemi.
Mental Health Disorders
Mental health conditions, whether pre-existing or emerging during the perinatal stage, can deepen the experience of brain fog. Conditions like postpartum depression and postpartum anxiety often contribute to brain fog, making it harder to focus and feel mentally clear.
If you have a history of depression or anxiety, this time can heighten those symptoms, adding to feelings of overwhelm and mental fatigue. It’s important to let your care team (OB/GYN, primary care doctor, psychiatrist, etc.) know if symptoms appear or get worse. Support is available, and treatment can help.
Why New Mothers Are Vulnerable to Stress
The same brain changes that enhance bonding and empathy can also increase sensitivity to stress.
“These neural changes strengthen empathy, social bonding, and emotion regulation but also create a window of vulnerability to stress, hormonal fluctuation, and inadequate sleep,” said Dr. Ghassemi.
In daily life, this can feel like being more easily overwhelmed, emotionally reactive, or unable to relax fully. With sleep disruption, constant caregiving demands, and the pressure to do everything right, stress can build quickly.
Parental Brain: A Consideration for Partners
Brain changes are not limited to birthing parents. Research also shows that fathers and non-birthing partners also experience neurological shifts in brain structure related to bonding and caregiving.
“The parental brain in both mothers and fathers undergoes rapid remodeling,” said Dr. Ghassemi, supporting connection while also increasing vulnerability to anxiety and depression.
How to Cope with Mom Brain: 5 Approaches
You cannot simply will these challenges away, but you can support your brain through them. Here are some strategies that can help when your brain feels like it’s in a fog or needs some support in remembering.
1. Protect Your Sleep
Sleep is one of the most powerful tools you have. “Reframing sleep as a clinical intervention rather than a luxury is an essential shift in preventive perinatal care,” said Dr. Ghassemi. Aim for at least one uninterrupted 4- to 5-hour stretch when possible.
2. Externalize Your Memory
Instead of relying on your brain to hold everything, move important information outside of it. Using note apps, setting reminders, and keeping simple running lists can take pressure off your memory and reduce mental overload. When everything from appointments to grocery items has a place to live, your brain is free to focus on what matters most.
3. Simplify Your Systems
Making everyday life more predictable can ease cognitive strain. Reducing multitasking, creating simple routines, and keeping essentials in consistent places all help minimize confusion. When fewer mental pivots are required throughout the day, it’s easier to feel more in control.
4. Share the Load
“It takes a village,” holds very true. Accepting help, dividing responsibilities, and letting go of unrealistic expectations can significantly reduce the mental toll. Sharing the load creates space for rest and clarity, and it supports a more sustainable approach to caregiving.
5. Support Your Body
Your brain depends on your body to function well, especially during times of change and recovery. Eating regularly, staying hydrated, and incorporating gentle movement into your day can support emotional balance.
Should I Be Concerned About “Mom Brain” and Brain Fog?
While brain fog and forgetfulness are usually harmless, there are times when it is important to look more closely into them.
Consider reaching out to your doctor if you notice:
- Persistent brain fog that doesn’t improve
- Difficulty functioning day-to-day
- Low mood or loss of interest
- High anxiety or intrusive thoughts
“Cognitive fog alone is usually benign, but persistent difficulty concentrating, low mood, or indecisiveness may signal perinatal mood or anxiety disorders,” said Dr. Ghassemi.
If cognitive changes are paired with emotional distress or interfere with daily functioning, it is important to seek support. Early care can make a meaningful difference for both parent and child.
Perinatal and Maternal Mental Health Program in Minnesota
For parents experiencing significant brain fog alongside depression, anxiety, intrusive thoughts, or difficulty functioning, PrairieCare’s specialized Perinatal and Maternal Mental Health Intensive Outpatient Program (IOP) offers comprehensive support.
Our perinatal IOP includes:
- Daily skill-building and process groups
- Individual and family therapy
- Weekly appointments with a perinatal psychiatrist for monitoring and medication management
- Attachment-based mother–baby dyadic therapy
- Health and wellness support for parents
- Family-centered care
- Trauma-informed care
Our team has extensive expertise in perinatal mood and anxiety disorders, as well as the complexities that motherhood may bring. You don’t have to do it alone. Reaching out for help is one of the most courageous things you can do as a new parent.
Call our perinatal team directly at 612-274-74954 to get started today. You can also fill out a form to request a perinatal mental health screening here.
Frequently Asked Questions
What does it mean to have mom brain?
- “Mom brain” refers to the cognitive changes that happen during pregnancy and early parenthood, including forgetfulness, mental fog, and difficulty focusing. It is not a decline in ability, but a normal brain adaptation that supports caregiving.
How to get rid of mom brain fog?
- You can’t eliminate brain fog, but you can ease it by protecting sleep, using reminders and lists, simplifying routines, sharing responsibilities, and supporting your body with food, hydration, and movement.
How long does mom brain last?
- It varies. For some, it improves within a few months, while for others it can last longer, depending on factors like sleep, stress, and mental health.
What are mom brain symptoms?
- Common symptoms include forgetfulness, trouble concentrating, mental fatigue, feeling foggy, difficulty multitasking, and occasionally struggling to find words or remember tasks.
How does pregnancy affect the brain?
- Pregnancy triggers hormonal changes that reshape the brain. These changes affect memory, attention, and emotional processing, while strengthening bonding, empathy, and caregiving abilities.