A Classic Illusion That Tricks the Eye
The optical illusion “My Wife and My Mother-in-Law” is a classic in the world of visual puzzles. People around the globe recognize it for its clever design. At first glance, you’ll spot either a young woman turning away or an older woman facing left.
What You See Might Reveal Your Age
What’s fascinating is this: you can usually see only one face at a time. And the one you notice first might hint at your age.
The Genius Behind the Image
The trick lies in the shared features. The young woman’s chin doubles as the older woman’s nose. Meanwhile, the older woman’s chin becomes the young woman’s chest. This overlap creates a mind-bending illusion.

The famous “My Wife and My Mother-in-Law” optical illusion which presents a young woman turning away from the viewer and the profile of an older woman simultaneously, Photo Credit: SehtestBilder/Youtube
Why We See Different Faces
So why do some people spot the young woman while others see the older one? A 2018 study by two Australian psychologists offers a possible explanation — it’s all about age.
What the Research Found
Researchers showed the illusion to 393 participants, aged 18 to 68. They flashed the image for just half a second, then asked: what age and gender did you see?
The Results Were Telling
Younger participants mostly saw the young woman first. Older viewers, however, spotted the older woman right away. The split was clear.
Digging Deeper: Age Bias at Play
To go further, the researchers isolated the youngest and oldest 10% of the group. They found consistent results: younger people saw the young woman, older people saw the older one.
This suggests a subconscious “own-age bias.” In other words, we may recognize faces closer to our own age faster than others.

An optical illusion similar to the famous “My Wife and My Mother-in-Law”, Photo Credit: King of Memes/Tiktok