"Brother, you've been depressed for over a week now, and I can't stand to see it anymore." The person pulling the curtains was backlit, making their features somewhat unclear. But Wang Taika knew immediately who it was just from his soft, gentle voice. It was Han Mo, his roommate and good friend.,“Bipolar disorder! It’s when you’re manic one moment, depressed the next, and sometimes both at the same time,” Wang Taika said. “Staying in the deep mountains for too long, all alone, that’s what does it to you. I have to take medicine every day just to keep it under control!”,As a documentary filmmaker, Wang Taika's physical fitness could reach the level of a survival expert. Otherwise, it would be impossible for him to have visited so many dangerous places and survived safely. So, he knows or has heard of almost all the well-known survival experts in China.。