Another benefit of writing is that it helps you remember. Many, if not most, highly productive people are always taking notes. You can try keeping it all in your head, but if you keep a journal of your ideas next time you're working on a big project, you'll probably have more success.

To Write Is To Understand

Want to understand a topic? Write a book about it. That's an extreme example, but if you are learning something new, write a letter to a friend about it, and you will understand it better. Want to invent something? Write a explanation of problem, why you want to solve it, and why it is worth solving, and you're half-way there.

Writers don't always write because they clearly understand something beforehand. Often, they write about something because they want to understand it. You can do same. Writing will help bring you to an understanding. Give it a try.

After doing this a few times, you'll find it becomes easier to recognise what is just below surface, irritating you and sapping your brain power. Take care of those things, and clearer thinking is automatic.

More Tips For Clearer Thinking

1. Take a walk. Research will eventually show that this is one of best things you can do to improve quality of your thinking. Don't wait for proof. There are enough other reasons to take a walk anyhow.

2. Avoid sugar. If you really don't understand concept of brain fog, eat a large piece of sugary cake on an empty stomach, then try to do math problems twenty minutes later. You'll get point. This is what they call "sugar blues."

3. Take three deep breaths through your nose.

4. Avoid alcohol.

You don't have to use all of these tips and techniques to have clearer thinking, but try at least a couple today, and make one or two a habit. The brain fog will start to dissipate, and you'll have a more powerful mind.