People come in different shapes and sizes. Whilst there are certain conditions like dwarfism which can cause people to have a smaller than average stature, almost no one in their 30s is the size and mental age of a toddler.

Although some people with dwarfism have grown to a height that’s particularly small even with the condition, they are able to develop mentally at a normal rate. A good example is the world’s smallest ever person Chandra Bahadur Dangi.

He is pictured below meeting the world’s tallest man Sultan Kosen.

Born in Nepal, Dangi was just 21.5 inches tall. He lived until he was 75 years old, and he was able to have a career as a farmer – a common occupation in the village where he lived – despite his extraordinarily small size.

Unlike Dangi, 30-year-old Wang Tianfang from Eastern China stopped growing between the ages of two and three. He’s remained the same size as a toddler, and, unfortunately, he has never developed mentally since that age either.

Tianfang is unable to speak and needs around-the-clock care from his mother, 52-year-old Chu Xiaoping.

It is not known what happened to his father.