37 days MINUS 15 ~ 20 kg? I just finished. . . Don't eat too early, half a bowl of rice and a vegetarian dish (change a chicken leg or fish every two days), and a fruit for dinner (apples are best). . This is a thing. Exercise means running constantly every day. It may be hard between 6000- 10000m, but we must stick to it. Don't be afraid of what will drag you down. . . Those who are hungry and tired should hold the spirit of not being afraid of death.