Complex sentence: Richard cannot cope with his task and retreats into the forest, where over the next few days, due to lack of food and low blood pressure, he begins to lose his sanity, believing that he is communing with the long-dead Daffy.
Split into simpler sentences: Richard cannot cope with his task and retreats into the forest where over the next few days. Due to lack of food and low blood pressure, he begins to lose his sanity, believing that he is communing with the long-dead Daffy.