Dizziness and vertigo are not the same thing. In elderly people, dizziness is usually associated with light-headedness, dizziness, a sense of swaying, or a feeling of weakness, blurred vision, unsteadiness in standing or walking, and so on. This dizziness may be accompanied by nausea and vomiting, but is not accompanied by a sense of movement or rotation of self or external objects. In the case of dizziness in the elderly, the first thing to consider is whether the dizziness is caused by a change of position, such as sudden dizziness when lying down or getting up, which may be caused by upright hypotension. Other causes of dizziness include cardiac arrhythmia, myocardial ischemia, anemia, hypoglycemia, and so on. In addition, the most common cause of dizziness in the elderly is inadequate blood supply to the brain, mainly due to atherosclerosis, or blood clots in the head, and so on. A lot of dizziness is functional, it can also appear as benign positional vertigo, and psychological factors can also cause dizziness, etc. In short, dizziness can be severe enough to cause nausea and vomiting. Once dizziness is detected in the elderly, it is important to see a doctor immediately for further examination and to identify the cause before treatment.