Alesha Dixon health: The Greatest Dancer judge reveals ‘niggle’ in her brain - what is it?

ALESHA DIXON, 41, has emanated warmth and positivity since first bursting onto the scene in 2001 as part of the all-female trio to Mis-Teeq. As a host on the current series of BBC One's The Greatest Dancer, she delivers much of the same high-spirited energy that has attracted a loyal fanbase over the years, but what you see in front of the camera doesn't always reveal the full picture.