Himalayan Viagra under threat from climate change

Caterpillar fungus which is nicknamed Himalayan Viagra in Asia is becoming harder
 to find due to climate change. The price estimates to be more valuable than
gold.People in China and Nepal have been killed in clashes over the years over the
elusive fungus yarchagumba, known formally as Ophiocordyceps sinensis.Although
it has no scientifically proven benefits, people who boil yarchagumba in water to
make tea or add it to soups and stews believe it cures everything from impotence to
cancer.