Hi.
Despreesion is almost always --------- by insomnnia.
Accelerated or accompanied or maybe magnified?
Unless there happens to be a person on this forum who is an expert in this field, you are unlikely to get a single answer. All three might be correct, though I doubt that accelerated is right. Accompanied would be my guess. I can, however, correct your spelling with confidence:
depression; insomnia
Grammatically, they could all work. However, as J&K has stated, the answer is most likely "accompanied".
J&K Tutoring has already explained, and SlickVick confirmed, that all three might be possible. These two native speakers feel that they would be more likely to use accompanied; so do I. Others might choose another word. It is not always possible to say exactly why we might choose one word over another; I might choose a different word tomorrow.
Context is always important; labelling is rarely important.