Hunger, wilderness, hunger, nightmares, why is health declining?

Hunger, wilderness, hunger, nightmares, because away from the camp, health has been declining. Coping methods:

1. Wearing production equipment (such as a wolf coat) can improve the ability to keep out the cold at night and reduce the loss rate of health.

2. Reasonably assign tasks, complete all explorations during the day and stay near the camp at night (cooking or something).