Grylls , 34 , is the host of Discovery 's `` Man vs. Wild '' in which he demonstrates extreme measures -- including eating snakes and insects -- used to survive in harsh environmental conditions . Adventurer and TV show host Bear Grylls injured his shoulder . Grylls was in Africa on an expedition for charity . Host went to hospital for treatment , Discovery Channel says .
Adventurer and TV show host Bear Grylls injured his shoulder . Grylls was in Africa on an expedition for charity . Host went to hospital for treatment , Discovery Channel says .