57 days between life and death

57 days, 40-degree cold, a life-and-death battle, and an altitude of 8,848 meters — this is the story of mountaineer Gevorg Gasparyan’s ascent of Everest, the world’s highest peak, where he raised the Armenian tricolor and sang a sharakan (Armenian liturgical songs) at the summit.

What does it take to climb Everest, and what do mountaineers go through?