July 21, 2026

Researchers from Mass General Brigham have found that nearly a third of American adults without heart disease, and almost 80% of those who have suffered a heart attack or stroke, have LDL cholesterol levels exceeding the targets set by the new 2026 American cholesterol guidelines. The study, published in JAMA, highlights that around 75% of…

Stars and galaxies account for much of the universe’s visible matter, yet scientists have long puzzled over a discrepancy: there appears to be more matter than what is observed. Physicists estimate that shortly after the Big Bang, about 83% of the universe’s matter was dark matter, with the rest being ordinary matter. However, the quantity…