Long-haulers are people previously infected with COVID-19 who continue to live with symptoms like fatigue, headaches, brain fog and shortness of breath. But COVID isn’t the only virus that can affect the body in strange ways, and blue legs don’t get much stranger…

Experts have long believed the thymus gland, which produces all the immune-boosting T cells the body needs during childhood, was of little use once we got older. Turns out they weren’t just wrong, they were dead wrong — as in “double the risk of death” wrong.

Inflammatory bowel diseases affect millions of people, and though the exact causes are not fully understood, here’s a clue that’s hard to ignore: the most commonly used artificial coloring in American grocery items has already been banned in most of Europe for reasons you should know.

Metabolic syndrome combines insulin resistance, high blood pressure, high cholesterol and obesity for a high risk of heart trouble and stroke. If you have lupus, you may be shocked to find yourself in the crosshairs of this dangerous condition.

Summer is here, and the mercury is rising in parts of the country. Being outside in hot weather doesn’t just put you at risk of heatstroke and sunburn. If you have any of these 5 conditions, it could exacerbate your symptoms…

While autoimmune conditions, like rheumatoid and Hashimoto’s are on the rise, treatments that work have been few and far between, especially ones where the side effects aren’t worse than the condition itself. But help could be on the way from a medicinal plant aptly named the Thunder God Vine…

You may be familiar with tremors as a symptom of Parkinson’s. But in working to identify the earliest symptoms, researchers are finding that some signs appearing years before a diagnosis is made are, surprisingly, not neurological in nature.

Evidence keeps stacking up that the gut microbiome plays a strong role in MS. And recent findings reveal systems that may be manipulated for new treatments, perhaps with supplements that promote protective bacteria — without the side effects of medications.

Selma Blair and Christina Applegate are part of a trend, but not a popular one. Autoimmune diseases are on the rise in people aged 50 and older. While scientists examine why, one possible reason is a common medication. Another isn’t so easy to avoid…

The human body is amazing. But a lot of little things can go wrong. Some are annoying, like rashes, while others, like fatigue, can wreak havoc with our daily lives. Many of these mishaps are set off by a poorly functioning immune system. Here’s how to know if yours is in trouble…

In people living with scleroderma, the immune system tricks tissues in the body into thinking they’re injured. This causes a buildup of scar tissue that hardens the skin and damages blood vessels and internal organs. But it get much worse with a common metabolite found in a very common diet…

If you’re living with an autoimmune disease, you’re probably focused on keeping it under control. But you should know heart disease could be just around the corner. Autoimmune problems that posed the highest heart risk included these four…