Depending on the mode you have picked, you may also have to fight off monsters and deal with other environmental challenges (survival mode). (gamepressure.com)
For many individuals there immune system gets so overworked from gluten sensitivity and other environmental challenges such as toxins, parasites, vitamin D3 deficiencies and trauma that they can have severe immune reactions that last months after one provoked exposure. (drjockers.com)
Expanding farm land diminishes animal habitats, and reduces water runoff, among other environmental challenges. (aaas.org)