New Delhi, March 26 -- An estimated 1 in 10 people worldwide have diabetes. Africa is the region with the fastest growth and it's estimated that the number of people on the continent with diabetes will more than double in the next 20 years, increasing to about 55 million people by 2045.

Having diabetes has serious consequences for health and is associated with increased risk of developing diseases related to damage to the heart (heart attacks), blood vessels (strokes, foot ulcers), kidneys (chronic kidney failure), and the nervous system (blindness, loss of sensation).

When it comes to nerve damage, it typically affects long nerve fibres that supply the feet and can sometimes affect fibres that supply the hands too (a so-called glove an...