Diseases & Conditions Archive

A recent study suggested a vegan diet is an effective treatment for rheumatoid arthritis, and its lead author also said that people should try changing their eating patterns before turning to medication. But there is no evidence that changes in diet can prevent joint damage that occurs in rheumatoid arthritis.

Melasma is a skin condition affecting mostly women with darker skin. It cannot be fully prevented in those most likely to develop it, and there is no cure, but consistent sunscreen use is critical, and numerous treatment options are available.

Thanks to vaccination, the US has been polio-free since 1979, and the spread of this disease has been interrupted in most countries. But worldwide eradication of polio has been elusive, and traces of the virus were recently found in wastewater in London.

There are several types of "sun allergies," including polymorphous light eruption (PMLE), hives, and photoallergic reactions. Learn about these different reactions to sun exposure, as well as prevention and treatment.

Long-established treatments for essential tremor, such as medication and deep brain stimulation surgery, have been joined by a leading-edge technique called focused ultrasound. This incision-free procedure aims sound waves at a spot deep in the brain responsible for tremors. While scientists study ultrasound's long-term effects, the procedure is currently used to treat shakiness on only one side of the body. Other common causes of tremor include Parkinson's disease, caffeine, alcohol withdrawal, anxiety, and fatigue.

A 2022 study found that people who recover from COVID-19 face significantly higher risks of developing type 2 diabetes than those who had short-term upper respiratory tract infections, which are often caused by other viruses.

Hiccups are sometimes triggered by emotional stress such as surprise, fright, or nervousness. People can try to stop hiccups by holding their breath for five to 10 seconds, breathing into a paper bag, or sipping ice water. Occasionally, hiccups signal other conditions.

Most people have eye twitches at some point in their lives. These are usually a sign of minor physical or mental stress. Spasms can be calmed with a warm compress, sleep, or exercise. People should see a doctor if one or both eyes close involuntarily with spasms.

Ticklishness falls into two categories: gargalesis (which produces laughter and squirming) and knismesis (the sensation of a feather brushing over the skin, also known as light-touch tickling). It is not clear why some people are ticklish, but it may be a bonding or protective reaction.

People with knee osteoarthritis often gain temporary pain relief from joint injections. However, there is uncertainty about long-term risks of steroid injections. A 2022 study suggests that the risk may be minimal if these injections are done infrequently.