1 Other symptoms of vertigo may include hearing loss and a ringing sensation in the ears, visual disturbances, weakness, difficulty speaking, a decreased level of consciousness, and difficulty walking.  Vertigo is diagnosed by a medical history and physical exam.
A halo is a circle of light that is shown in pictures round the head of a holy figure such as a saint or angel. A halo is a circle of light round a person or thing, or something that looks like a circle of light. The sun had a faint halo round it. She angrily slung a scarf around her head, flattening her halo of hair.
Another advantage, in general, is that the halo effect is a type of heuristic, or mental shortcut. It helps us make decisions about others quickly without having to spend a lot of time analyzing their behavior. For example, we assume that someone with an innocent-looking face is honest and trustworthy.