Cannabis had already dominated the world of medicine. More and more people become convinced of its effectiveness, especially in terms of treating known diseases (e.g., Epilepsy, Depression, and Anxiety). Such commotion resulted in several experts to create and establish pieces of research about cannabis. Factors affecting the pros and cons are identified and verified to know further whether or not it is a capable substance.

Soldiers take part in a drill during a heavy snow in Heihe, Heilongjiang province, February 26, 2014. (Photo by Reuters/China Daily)

A tattoo artist applying ink on a girl' s arm during the 2017 Moscow Tattoo Festival at Moscow' s Amber Plaza Shopping Center in Moscow, Russia on April 1, 2017. Tattoo artists from all over the world take part in the event. The festival' s program includes a tattoo contest, body taping art marathon, masterclasses, round table discussions and conferences. (Photo by Valery Sharifulin/TASS)

Three elephant seals put on a show in Roie Galitz's “Three Tanors”, taken on January 7, 2016 in South Georgia Island. The Comedy Wildlife Photography Awards are in full swing, so check out some of the fierce competitors jostling for the top prize this year. Photographers Paul Joynson-Hicks MBE and Tom Sullam founded the awards to spotlight wildlife conservation efforts and to inject some humour into the world of wildlife photography. (Photo by Roie Galitz/CWPA/Barcroft Images)

These stunning images have captured UFO type clouds forming around world famous volcano. The Kamchatka peninsula contains the volcanoes of Kamchatka, which have been captured in a series of stunning shots by photographer Vladimir Voychuk, 37, from Klin, Russia. It is said that Kamchatka is one of the most picturesque distant corners of huge Russia and attracts hundreds of photographers with its unique nature. Here: The stunning Kamchatka Peninsula, Russia. (Photo by Vladimir Voychuk/Caters News)

The Olaf balloon glides over Central Park West during the Macy's Thanksgiving Day Parade in New York, Thursday, November 23, 2017. The Macy's Thanksgiving Day parade is the largest parade in the world and has been held since 1924. (Photo by Craig Ruttle/AP Photo)

The faces of war have been brought back to life after a series of World War One photographs were expertly colourised. The black and white snaps were painstakingly restored and colourised by photographer Mario Unger (53) from Rotenturm, Austria. Here: One image shows an unidentified American soldier posing with a pistol, helmet, and Iron Cross medal taken from a German soldier, 1918. (Photo by Mario Unger/Mediadrumworld)

Life as tenant farmers in Kasungu, northern Malawi, can be a struggle for families trapped in poverty, who feel forced to rely on their children’s help, impacting schooling. Here: A tobacco field at a farm in Kasungu region, Malawi. Tobacco is the country’s most important export crop, with tobacco leaf from Malawi filling cigarettes found all over the world. Here: Tiyamike Phiri hopes to become a nurse because she wants to travel the country and help others. (Photo by David Levene/The Guardian)