The revelation that reality TV is often fabricated shouldn't shock anyone. Despite Bear Grylls' reputation as an outdoor expert—having survived a major fall during his time in the British Special Forces, climbed Mt. Everest before turning 25, and navigated the North Atlantic in an inflatable raft—there's skepticism about his true survival prowess.

Evidence suggests that Grylls may not be as formidable a survivalist as portrayed. Some of his wilderness advice has even been questioned by other experts. So, what's the reality?

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