Horror Sub-Genres and Hybrid genres

The genres above are linked to the history of the horror genre. As over time new genres and sub-genres have been introduced, the genres and sub-genres have been introduced due to the time period and what exactly is going on during this period in history. In the 1940's/1950's people were scared of technology, as it was just after the war they were frightened about how technology would effect the world, for example the film 'Invasion of the Body Snatchers'. Furthermore in the current time period, the public are more scared about the unknown and what we are unknowledgeable about, the Paranormal this is why horror films these days are of the genre paranormal, for example 'The Conjuring'
The type of horror film made is based on what society are scared about at the time the film is made, the horror genre reflects society's feelings.