The term âdementiaâ is used to describe a set of symptoms that can include memory loss, difficulty thinking, problem solving, or issues with language. Dementia is caused by damage to the brain cells, and because Alzheimer's is a disease that destroys the brain, it is one of the most common causes of dementia.
Most spider bites cause minor swelling, inflammation, and itching. However, bites from poisonous spiders can cause more severe reactions. Black widow bites affect the nervous system. The bite from a black widow may go unnoticed or may feel like a pinprick.
Black widow spider bites. Signs and symptoms of a black widow spider bite may include: Pain. Typically beginning within an hour of being bitten, pain generally occurs around the bite mark, but it can spread from the bite site into your abdomen, back or chest. Cramping. Abdominal cramping or rigidity can be so severe that it's sometimes mistaken for appendicitis or a ruptured appendix.