- By Aditi Priya Singh
- Sun, 07 Dec 2025 06:07 PM (IST)
- Source:JND
Cold Weather Fact: As winter approaches, we might notice that our body and brain start reacting slowly. From dry skin to shivering hands, cold weather changes how your body feels. Yet many people miss one big thing that freezing temperature affect our brain work too. If it’s extremely cold, your body's system sends extra blood to vital organs such as the heart or lungs to stay warm. That change means your brain might get less oxygen for a bit. So you could feel sluggish, drained, foggy or a bit out of it.
You may realise that when winter hits, it becomes harder to think fast, recall stuff or focus for hours. When it's freezing, even students and office workers can struggle to get tasks done smoothly. This mental haze in cold months isn't made up; research shows brains operate a bit sluggishly in freezing conditions. So, keeping yourself warm and cosy is not only good for your body, but it also helps your mind stay alert, too.
Let's explore why the brain becomes slower in cold weather or winter.
How Cold Weather Slows Down the Brain
Cold Weather facts (Image: Canva)
When the human body gets cold, it switches to survival mode. To keep you alive and functional, the body directs heat and blood circulation toward key organs. That’s why the brain temporarily gets less air. Which leads to:
*Thinking becomes slower
*Memory becomes weaker
*Concentration drops, and we feel sleepy or lazy.
This is why many people feel mentally dull during winter mornings.
Winter Brain Fog: What Does It Feel Like?
Brain fog isn't an illness - it's a short-term condition triggered by colds, tiredness or lack of sun. Symptoms can include:
*Having a hard time recalling everyday stuff
*Slow responses or late replies
*Difficulty making decisions
*The mind is confused instead of focusing
Students may observe that learning takes longer than normal on chilly early mornings.
How to Keep Your Brain Active in Cold Weather
Keep Yourself Warm
*Wear comfortable sweaters, stockings and gloves.
*Sit in a warm place
*Stay out of direct chilly winds.
Boost Your Brain with These Habits
*Have a cup of warm tea - or just sip hot water
*Go for a walk or stretch your body
*Eat healthy, warm meals - try soup or dried fruit instead
*Get enough sunlight to increase Vitamin D in the body
Stay Active Outdoors
Brain function, blood flow and mood are all enhanced by even a quick stroll in the sun.
