Diseases & Conditions Archive

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.

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.

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.

Burning mouth syndrome affects about 2% of people, with women up to seven times more likely than men to be diagnosed. Symptoms include burning sensations in the lips, mouth, or throat as well as stabbing pain, tingling, a sour or metallic taste, or the sense that something is crawling inside the mouth. Women’s hormone dips during perimenopause and beyond may play a role in the condition, and stress and anxiety are also considered risk factors. To confirm the diagnosis, doctors must first rule out other potential causes of 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.

A 2025 randomized controlled trial found that GLP-1 receptor agonists, the blockbuster drugs approved to treat diabetes and obesity, boosted the walking ability of people with diabetes and peripheral artery disease (PAD) in the legs. The news is encouraging, since there are few effective treatments for PAD—reduced blood flow in the limbs that leads to pain with activity. However, it will take more evidence before doctors feel comfortable prescribing GLP-1s if a person only has PAD.