The weekend is within reaching distance, but unfortunately we're not quite there yet. If you're struggling to focus this late in the week, why not challenge yourself to a tricky brain teaser?
While psychical activity is a good option to improve your brain health and boost mood, optical illusions are also great for improving your mind as they force you to hone in on your perception skills and test your ability to spot hidden objects. If you regularly complete the puzzles you can also improve your overall brain health, as well as boost your memory.
A tricky brain teaser is challenging puzzlers to spot the heart-shaped diamond among a sea of other precious stones – but it's not as easy as it looks.
The puzzle, created and shared by family-owned jewellers and specialist diamond merchants Chisholm Hunter, shows many diamonds in various shapes and sizes.
According to the brain teaser's creators, it takes on average one minute for people to find the beautiful stone, but if you have magpie vision and are drawn to shiny things, you may be able to beat it.
Only one in five people can spot the heart-shaped stone in less than 30 seconds, so if that's you, you really do have crystal clear vision.
If you need a helping hand, try looking at the bottom left size of the brain teaser.
Still struggling to spot it? Consider this your spoiler warning, because we will put you out of your misery by showing the answer below.
As previously mentioned, doing these sorts of puzzles can really help you sharpen your focus, so why not have a go at another one?
Another brain teaser challenges you to spot a hidden word in a word search. The catch is you only have nine seconds to spot it.
Was that one easy? Why not try to find all the triangles in this tricky puzzle within six minutes? It sounds like a long time – but there are loads of triangles to find.
Lastly, you have eyes like a hawk if you can manage to spot the number 725 among the 775s in just seven seconds.
Did you manage to find the heart-shaped diamond? Let us know in the comment section below.
