Brain fog so dense one can barely form a sentence. Histamine intolerance and mast cell activation syndrome (MCAS)—a rare ...

Audrey was in seventh grade when her bones started breaking: eight in total, over six months. Some of them broke dramatically ...

Having experienced the same symptoms, Makenna Kovach, 29, told Newsweek that sometimes symptoms "don't fit neatly into ...

For families of children with severe epilepsy, controlling seizures is often just the beginning of their challenges. Even in cases where powerful medications can reduce seizures, many children ...

The number of Americans claiming they suffer from toxic-mold exposure keeps growing — and so does the list of their symptoms.

"For me, these changes are not abstract politics—they're a direct threat to survival," Aiyana Baldasty told Newsweek in an exclusive interview.

Bipolar disorder (BD) is a chronic mental health condition characterized by recurrent episodes of depression and mania. It poses a substantial burden on global health, with an increasing incidence.

Food allergies affect more than half a billion people worldwide. In severe cases, even a small bite of the wrong food can trigger anaphylaxis - a rapid, body-wide allergic reaction that can cause ...

Eating disorders can affect anybody, no matter their age, gender, ethnicity, socioeconomic status or body size. Yet the myth that eating disorders are "diseases of affluence" persists, and can mean ...

Jacklyn "Jackie" Gise Bezos, the mother of Jeff Bezos, died last week at 78 after battling Lewy body dementia (LBD). The Amazon founder announced Jacklyn Bezos' death on Instagram, remembering her as ...

Celldex has stopped development of barzolvolimab in eosinophilic esophagitis (EoE) despite meeting its primary endpoint in a phase 2 trial. The biotech showed the candidate depletes mast cells in the ...

Millions of people suffer debilitating reactions in the presence of certain scents and chemicals. One scientist has been struggling for decades to understand why—as she battles the condition herself.