(HealthDay News) -- If a family member or loved one begins to display strange behavior, an underlying health issue could be responsible, the U.S. National Library of Medicine says.
The agency mentions these potential causes of unusual behavior among the elderly:
- Drinking too much alcohol.
- Alzheimer's disease.
- Hypothermia, dehydration or low blood sugar (hypoglycemia).
- Electrolyte imbalance.
- Injury to the head, blood clot, stroke or heart attack.
- Being in an unfamiliar place.
- Certain medications.
- Thyroid disorder.