In the early 2000s, news reports began to surface of another disturbing phenomenon in rural villages in the cotton belt. The jet-black hair of numerous Punjabi schoolchildren, some as young as 10 years old, had turned gray—a rare condition most often associated with vitamin B12 deficiency or thyroid problems. Moreover, the number of cancers among middle-aged villagers, particularly women, seemed to be on the rise. Ailing patients began traveling from their rural villages to the southern Punjabi city of Bathinda to catch the train to the Acharya Tulsi Regional Cancer Treatment and Research Institute in Bikaner, a city in the neighboring state of Rajasthan. By early 2010, the Hindustan Times, one of the major Punjabi papers, reported that some 70 patients a day were boarding train number 339 for the eight-hour ride to Bikaner. The train
is now widely known as the "Cancer Express."