The movie "Split" portrays Dissociative Identity Disorder (DID) in a highly sensationalized and inaccurate manner. While DID is a legitimate psychiatric condition characterized by the presence of multiple distinct personality states within one individual, it does not typically cause severe physical differences between personalities, such as one being allergic to bees or one having diabetes.
DID is primarily associated with disruptions in memory, consciousness, identity, and perception. Each personality state, also known as an alter, may have its own unique characteristics, memories, and behaviors. However, these differences are typically psychological and subjective in nature, not physiological.
The idea of one personality in a person with DID having a physical condition like allergies or diabetes while others do not is not consistent with the clinical understanding of the disorder. Physical conditions like allergies and diabetes are based on underlying biological factors and are not influenced by changes in personality.
It's important to remember that movies like "Split" often exaggerate and dramatize mental health conditions for entertainment purposes, and they may not accurately represent the reality of these conditions. If you want to learn more about DID or any other mental health condition, it's best to consult reputable sources and mental health professionals.