You know the story: A perfectly normal person retires to bed for the evening. While they sleep, they catch on fire and burn to ash. In the aftermath, the authorities can’t find any discernible source of the blaze. Even stranger, the objects around the victim — aside from maybe their clothes, or the chair they were dozing in — are perfectly fine.
For years, spontaneous human combustion (or SHC, for those in the know) has baffled scientists and amateur paranormal investigators alike. But how mysterious is SHC, really? Like any other paranormal phenomenon, there are a number of logical explanations for spontaneous human combustion. Whether or not you believe them, on the other hand, is entirely up to you.