Editor’s Note (7/17/25): This story has been updated with additional reporting and expert commentary. President Donald Trump has been diagnosed with chronic venous insufficiency, a disease of the ...

In chronic venous insufficiency (CVI), the veins and valves in the legs do not pump blood effectively back up the legs to the heart. This decreased circulation leads to pain and aching in the legs and ...

Venous insufficiency is a problem with the flow of blood from the veins of the legs back to the heart. It's also called chronic venous insufficiency or chronic venous stasis. Your veins bring blood ...

Miguel Claro is a professional photographer, author and science communicator based in Lisbon, Portugal, who creates spectacular images of the night sky. As a European Southern Observatory photo ...

The secret lies in the ratio of two specific elements. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists have observed something ...

Genetic research in Sweden has unveiled three new gene variants that dramatically increase the risk of venous blood clots, sometimes by up to 180%. These discoveries build on existing knowledge of ...

Each Monday I pick out the northern hemisphere’s celestial highlights (mid-northern latitudes) for the week ahead, but be sure to check my main feed for more in-depth articles on stargazing, astronomy ...

Acute venous embolism and thrombosis are both conditions that disrupt blood flow. Treatment may involve medications or surgery. Blood clot formation is a protective mechanism that helps prevent excess ...

Thick, discolored or inflamed skin and wounds that won’t heal are visible signs of advanced, treatable venous insufficiency. Recently a local stage performer in Lehigh Acres was taken aback by the ...

THE measurement of the packed red-cell volume (or hematocrit) of the venous blood has long been recognized as a useful aid in the study of blood in a large number of clinical conditions. The technic ...