Alopecia: 'I am brave, I am smart, I am beautiful'
Deléna's hair began falling out when she was aged four. She was diagnosed with alopecia, a condition which causes hair loss.
The six-year-old from Haringey said children made fun of her at school because of her differences.
But she decided to write a book about her experience and how she learnt to embrace her looks.
Video by Alice Bhandhukravi and Jamie Moreland
