Brain fog, or mental fatigue, can stem from stress, poor sleep, diet, or inactivity. Simple lifestyle changes often help restore clarity and cognitive function.
Sometimes finding the cause of mental fatigue is a no-brainer, like when you’re chronically tired. At other times the cause can be more elusive.
Sometimes finding the cause of mental fatigue is a no-brainer, like when you’re chronically tired. At other times the cause can be more elusive.
Mental fatigue, or ‘brain fog’ as it’s often known, isn’t a specific medical condition – it’s simply that feeling of your brain not serving you as well as you know it can.1a This kind of fatigue can affect you in many ways, because your brain has such a vast range of functions. It could mean that you have trouble with your memory – easy to notice when you forget to complete a routine task, or a go blank trying to remember a familiar person’s name. Or maybe you find yourself struggling with simple calculations, like counting loose change when you’re paying for a coffee. It can also be more subtle – trouble with visual tasks like reading maps, or generally struggling with problem solving, planning and organizing.
The causes of brain fog are as diverse as the symptoms. So if you’ve got that foggy feeling, it’s best to work out what’s behind it before it gets too frustrating.
When you’re feeling mentally fatigued, it’s a good idea to get a few simple strategies in place that can often get your brain back to its normal self.
Give your diet a boost – with more protein, fish, fruit, vegetables, and sources of healthy fats such as nuts, avocados and olive oil1i
If these hacks aren’t helpful, then it’s best to speak with your doctor or healthcare professional. It might be a good idea to get your iron and fatty acids levels checked if you suspect that these could be low, especially if you feel physically fatigued too. Similarly, if you’ve started feeling mental fatigue after becoming ill in some other way or starting a new medication, your doctor may shed some light on whether there’s a connection and a potential solution.
Once you have cleared the fog, you might even consider strategies for enhancing your mental clarity further. Meditation is a great option for boosting mental performance, and has other great health benefits.3a, 4a Or you could consider introducing a natural food supplement to your routine, for some extra brain support.
Lifestyle insight
While there are many important fats and fatty acids, it's a good idea to get to know their importance and why you can't live without them.