Humans evolved in an atmosphere containing roughly 200–300 parts per million (ppm) of carbon dioxide (CO₂). Today, that ...

Complement 3 glomerulopathy (C3G) is diagnosed with a combination of a clinical evaluation, blood tests, urine tests, and a renal (kidney) biopsy. The only way to definitively diagnose C3G and its ...

Growing up as a football player in Tucson, it’s easy to find yourself under the lights at Arizona Stadium on a Saturday night, hoping one day to run out of the tunnel with the hometown Wildcats.

The next question researchers want to answer is whether urine-derived lymphocytes can actually help inform responses to ...

Nitrites in urine can indicate a bacterial infection, like a urinary tract infection (UTI). A dipstick urinalysis test can quickly check for nitrites to help diagnose UTIs. Almost everyone eats a diet ...

Blood in urine can be a sign of kidney or bladder stones. Strenuous exercise can cause blood in the urine, especially in runners. An enlarged prostate is a common cause of blood in the urine for men ...

Researchers analyzed blood samples from 23 athletes before and after a long ultra-marathon and discovered that red blood cells become damaged, displaying characteristics similar to those seen in aging ...