Dizziness is common in older adults and has links to a higher risk of falls, disability, and an overall decline in health. It can have different causes, requiring a diagnosis to find the right ... High cholesterol in women can be cause by factors like lifestyle choices and health conditions.

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Learn more about the causes and how to prevent it. The virus that causes COVID-19 spreads between people in close contact. Most commonly, it spreads through the air in tiny droplets of fluid. Many people with COVID-19 have mild illness or no symptoms.

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But for older adults and people with certain medical conditions, COVID-19 can lead to the need for care in the hospital or death. Gastroesophageal reflux disease happens when stomach acid flows back up into the esophagus and causes heartburn. It's often called GERD for short. This backwash is known as acid reflux, and it can irritate the lining of the esophagus. Many people experience acid reflux now and then.

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However, when acid reflux happens repeatedly over time, it can cause GERD. Learn about symptoms of urinary tract infections. Find out what causes UTIs, how infections are treated and ways to prevent repeat UTIs. Kidney stones have various causes. These include diet, extra body weight, some health conditions, and some supplements and medicines. Kidney stones can affect any of the organs that make urine or remove it from the body โ€” from the kidneys to the bladder.

Often, stones form when the urine has less water in it. A tonic-clonic seizure, previously known as a grand mal seizure, causes a loss of consciousness and violent muscle contractions. It's the type of seizure most people picture when they think about seizures. During a seizure, there's a burst of electrical activity in the brain that causes changes in ...