The boy, named Leighton Brownrigg, is forced to stay indoors every day and must use high-strength sunscreen.
If Leighton is exposed to sunlight, his body temperature rises sharply. The hot summer in the UK this year has caused the young boy's skin to crack, causing him great pain.
Little Leighton's 22-year-old mother, Zoe, said, "He lives in darkness all day. He can only travel by car early in the morning or at night, and the car must have the air conditioning on and the windows must be tinted."
In February 2012, little Leighton was diagnosed with monocytic leukemia, a condition that occurs in young children with a probability of only one in a million. In August 2012, Leighton underwent a bone marrow transplant. Since then, he has lost his immune function and subsequently developed a photosensitive skin condition, which led to his allergy to sunlight.
Leighton's mother said, "On cloudy days, he can look at the scenery outside the window, but when he sees other children playing, he becomes restless. I am heartbroken by his plight, but I am also amazed by his strength."
Doctor Mark Velangi stated that although little Leighton's current condition is very poor, his health is gradually improving.



