20-01-2011 - Colombia, internally displaced indigenous men who just came back from a weeks hunting, show their family members traditional medicinal herbs they have found. San Jose del Guaviare, Colombia. © Boris Heger

17-01-2011 - Colombia, internally displaced indigenous shaman medicine man explaining to young members of his tribe the Ayahuasca root locally called "Yage". This hallucinogen drug is commonly used by some latin a... © Boris Heger

17-01-2011 - Colombia, internally displaced indigenous shaman medicine man explaining to young members of his tribe the Ayahuasca root locally called "Yage". This hallucinogen drug is commonly used by some latin a... © Boris Heger

17-01-2011 - Colombia, internally displaced indigenous shaman medicine man explaining to young members of his tribe the Ayahuasca root locally called "Yage". This hallucinogen drug is commonly used by some latin a... © Boris Heger

17-01-2011 - Colombia, internally displaced indigenous shaman medicine man explaining to young members of his tribe the Ayahuasca root locally called "Yage". This hallucinogen drug is commonly used by some latin a... © Boris Heger

17-01-2011 - Colombia, internally displaced indigenous shaman medicine man explaining to young members of his tribe the Ayahuasca root locally called "Yage". This hallucinogen drug is commonly used by some latin a... © Boris Heger

04-05-2010 - Darien Gap, Panama, Tule tribe. Chief looking at traditional medicinal herbs in the jungle. This village of Indigenous Tule have been displaced by conflict, to the Panama border region of the Darien g... © Boris Heger

10-12-2009 - An elderly coca farmer laughing while chewing coca leaves in the Chapare region, know for its production of coca leaves, regarded as a medicinal plant. Bolivia. © Boris Heger

15-01-2008 - The hands of Jerry Ball, an African American poultry plant worker, and union steward at Pico Foods for the Laborer's Union. He has Carpal tunnel syndrome from 13 years in the plant. © David Bacon

24-10-2006 - A counselor and a patient talking at the Penny Brohn Cancer Care (formerly Bristol Cancer Help Centre). © Paul Box

24-10-2006 - Psychotherapist with a patient, at the Penny Brohn Cancer Care (formerly Bristol Cancer Help Centre). © Paul Box

24-10-2006 - Psychotherapist with a patient, at the Penny Brohn Cancer Care (formerly Bristol Cancer Help Centre). © Paul Box

13-03-2006 - Edward Morrison was working on the kill floor at the Smithfield pork plant in Tarheel, North Carolina, manually pushing hogs down the line when he heard a pop in his left knee. He was diagnosed with a... © David Bacon

13-03-2006 - The hands of Margarita Galan, who was injured and then terminated at the Smithfield pork plant in Tarheel, North Carolina. © David Bacon

13-03-2006 - The hands of Margarita Galan, who was injured and then terminated at the Smithfield pork plant in Tarheel, North Carolina. © David Bacon

15-12-2005 - A woman gardening at her allotment. Bristol © Paul Box

15-12-2005 - A woman gardening at her allotment. Bristol © Paul Box

03-05-2005 - Deaths from AIDS-related illnesses are so common that the cemetries are full. People bury their loved ones in makeshift graves in woods around the town in St.Lucia, South Africa. © Gerry McCann

03-05-2005 - Deaths from AIDS-related illnesses are so common that the cemetries are full. People bury their loved ones in makeshift graves in woods around the town in St.Lucia, South Africa. © Gerry McCann

03-05-2005 - Deaths from AIDS-related illnesses are so common that the cemetries are full. People bury their loved ones in makeshift graves in woods around the town in St.Lucia, South Africa. © Gerry McCann

05-03-2005 - Oxfam water technicians check the turbidity of water which has been filtered at an Oxfam water treatment plant for people displaced by the tsunami. Ampara, Sri Lanka 2005 The provision of clean drinki... © Howard Davies

24-03-1986 - China, 1986. Trader selling traditional herbal medicines to a tourist from Shanghai, Emei Shan holy mountain, Sichuan Province © Melanie Friend

18-06-1984 - Battle of Orgreave 1984. Injured older miner is carried away by ambulance staff after he was attacked and injured by police on the picket line during violent clashes between miners and riot police off... © John Harris

20-02-1980 - Steel strike 1980 Mass picket at Sheerness steelworks, Kent. Waiting for an ambulance for a picket injured in the clash between pickets and police © NLA