Baby Brain: What’s Really Happening?

Understanding baby brain: The science behind cognitive changes during pregnancy and 5 tips to help navigate it.

There are many moments during pregnancy or postpartum when things just feel… off. You walk into a room and forget why. You lose your train of thought mid-sentence. Simple things, the kind that used to feel automatic, suddenly take more effort to hold onto.

It’s often brushed off as “baby brain.” Said lightly. Sometimes even dismissively.

But what you’re feeling isn’t imagined. And it is not a sign that something is wrong.

 

So, what is actually happening in the brain during pregnancy and postpartum?

Research shows that during pregnancy and postpartum, the brain undergoes real, measurable cognitive changes. These changes aren’t just about forgetfulness, they are structural brain changes that are supported by science.

Studies have found that pregnancy affects brain function by triggering changes in grey matter volume, particularly in areas linked to empathy, social cognition, and bonding. These changes aren’t random or a sign of decline. They are highly targeted, helping the brain become more efficient at reading and responding to a baby’s needs. In fact, some of these brain structural changes have been shown to last for years postpartum.

“Pregnancy brain isn’t just an old wives’ tale - there are real, measurable changes in brain structure during pregnancy that overlap with regions linked to social cognition, memory, and emotional processing. These changes appear to help tune the brain toward maternal behaviour which can sometimes come with subtle shifts in attention and memory.”
— Vilarroya (neuroscientist) on neural reorganisation during pregnancy

This phenomenon is an example of neuroplasticity, which is the brain’s ability to adapt and reorganise itself in response to experience. In this case, your brain is adapting to support motherhood.

 

The role hormones play: How pregnancy hormones impact the brain

Pregnancy and postpartum bring one of the most significant hormonal shifts the body will ever experience. These hormonal changes don’t just affect your body; they directly influence how your brain functions.

Hormones like:

• Estrogen and progesterone impact cognition, memory, and mood
• Oxytocin, often called the "bonding hormone," plays a key role in emotional connection
• Prolactin helps support caregiving behaviours
• Cortisol, which can be elevated during stress and disrupted sleep, can affect memory and focus

Together, these hormonal shifts actively reshape neural pathways, prioritising emotional awareness, vigilance, and connection to your baby.

 

Why memory and focus can feel different during and after pregnancy

Alongside these biological changes, there are very real, practical factors at play. Broken sleep, constant multitasking, and the mental load of caring for a newborn. Learning entirely new routines and responsibilities, often all at once, can overwhelm the brain’s cognitive capacity.

These experiences can impact:

• Short-term memory
• Attention span
• Processing speed

So if you’re forgetting small things or struggling to focus, it’s not a failure of your brain. It’s a reflection of everything your brain is holding at once. From sleep deprivation to the emotional load of parenting.

 

This isn’t a decline or cause for concern, it’s reorganisation

What’s important to understand is that these changes are not about losing cognitive ability. Instead, they are about reprioritisation.

Your brain is shifting resources toward:

• Reading cues
• Responding quickly
• Protecting and caring for your baby
• Building emotional connection

Some cognitive tasks may feel harder. But other capacities, particularly emotional attunement and instinct, are often heightened.

This isn’t loss. It’s reorganisation for motherhood.

 

How long does 'baby brain' last?

The experience of baby brain is not the same for everyone. The feeling of fogginess and forgetfulness is often temporary, improving as sleep returns and daily rhythms begin to stabilise.

However, some of the deeper structural changes in the brain can persist for years, supporting long-term shifts in how you process connection, emotion, and care. Over time, many women find their sense of clarity returns, often alongside a deeper sense of awareness and intuition.

 

You’re not imagining it

You are not less capable. You are not “losing it.” And you are not alone in this feeling. You are moving through a profound biological and emotional shift, one that is rarely explained in a way that makes women feel understood.

And while it may not always feel like it, your brain is not working against you. It’s working for you.

 

Here are 5 Tips to help with ‘baby brain’

1. Prioritize Sleep and Rest
   Sleep is one of the most significant factors affecting cognitive function. While sleep during pregnancy and postpartum can be elusive, try to prioritize rest whenever possible. Short naps or taking a break can refresh your mind and improve focus.
   Pro Tip: Incorporating a Magnesium Body Rub into your routine can help support better sleep by massaging your body where you’re tender and help relax you for the night ahead
2. Practice Mindfulness and Stress Relief
   Practicing mindfulness, meditation, or simply taking deep breaths can help calm your brain and improve focus. Stress is a big contributor to the feeling of “baby brain,” so finding moments of peace throughout the day can support better cognitive clarity.
   Pro Tip: Try breathing exercises before bed to help calm your mind and prepare for restorative sleep.
3. Break Tasks Into Smaller Chunks
   Managing multiple responsibilities can overwhelm your cognitive capacity. Break tasks down into smaller, more manageable steps and prioritize one thing at a time. Keeping a to-do list can help you stay on track and reduce feelings of forgetfulness.
   Pro Tip: Set timers to focus on one task at a time for 15–30 minutes, then take a break.
4. Stay Hydrated and Eat Brain-Boosting Foods
   A well-balanced diet full of brain-boosting nutrients, including omega-3 fatty acids, antioxidants, and protein, can improve mental clarity. Staying hydrated is also key—dehydration can worsen concentration and memory.
   Pro Tip: Keep water by your side and snack on nutrient-rich foods like nuts, leafy greens, and berries.

5.      Magnesium Body Rub Ritual for a Calming Night Routine         

Magnesium is a naturally occurring mineral that can support your overall well-being. To incorporate it into your routine, create a calming bedtime ritual with Magnesium Body Rub. Gently massage the rub into your shoulders, neck, and lower back to relax your muscles and unwind after a busy day. This simple ritual can help you feel more at ease and prepare for a peaceful night’s sleep.

Pro Tip: Take 5 minutes each night to apply the rub and follow it with some deep breathing or quiet reflection to help you relax before bed.

By focusing on sleep, stress management, proper nutrition, and a calming ritual, you can help your brain navigate the changes that come with pregnancy and postpartum while still feeling your best. And remember, these changes are just part of the remarkable way your brain is adapting to support motherhood.

 

 

Reference:

https://erc.europa.eu/projects-statistics/science-stories/how-pregnancy-reshapes-mums-brain (European Research Council summary on how pregnancy reshapes the maternal brain)