Diseases & Conditions Archive

Two kinds of migraine involve visual disturbances, such as strange, flickering light patterns. One type is migraine with aura, caused by brain activity. The other is ocular migraine, caused by blood vessel problems in the eye. The attacks may or may not be accompanied by a headache. Drugs called triptans might help soothe migraine with aura. Doctors don't have a way to stop an ocular migraine attack as it's occurring. For many people, the only way to cope is resting and waiting until the symptoms go away.

The digestion process slows as one ages, causing digested food to take its time moving along the gastrointestinal tract from the stomach through the intestines. The longer food stays in the digestive tract, the more opportunity there is for gas to be produced and build up, resulting in bloating. Recurrent bloating also can be caused by people's reactions to certain foods, especially those that contain sugars called FODMAPs. Adjusting one's diet to avoid trigger foods and taking over-the-counter remedies can help prevent and manage problem bloating.

Essential tremor is marked by involuntary shaking of one or more body parts, such as the hands, arms, legs, or head. Avoiding caffeine and stress and getting plenty of rest can be helpful. Several medications are available to ease the symptoms.

Havard researchers have identified biomarkers that appear to capture tinnitus severity for the first time. Scientists made the connection after analyzing the facial responses and pupil dilation of study participants as they listened to pleasant, neutral, or unpleasant sounds. The findings, when fed to a computer model, accurately predicted the severity of symptoms participants had reported on questionnaires. Scientists hope the biomarkers will lead to tools that gauge tinnitus severity and treatment effectiveness.

Increasing potassium levels while lowering sodium may be more effective in lowering high blood pressure than reducing dietary salt alone, particularly for men, according to a 2025 study.

Semaglutide, a GLP-1 agonist used to treat diabetes and obesity, may also help people with metabolic dysfunction-associated steatohepatitis, a severe stage of fatty liver disease, suggests a 2025 study.

In gastroesophageal reflux disease (GERD), stomach acid washes backward into the esophagus. This can cause symptoms such as heartburn, an acidic or metallic taste in the mouth, hoarse voice, chest pain, dry cough, post-nasal drip, or trouble swallowing. Symptoms can overlap with those of several other conditions. These include hiatal hernia, functional dyspepsia, eosinophilic esophagitis, esophageal spasms, or heart attack. Distinguishing GERD from other conditions may involve various tests, including an endoscopy to view the esophagus lining.