A seventh grader from Palatine, Illinois, has turned eggshells into calcium carbonate crystals and used them to investigate ...

A lab analysis of 22 commercial probiotic toothpastes and mouthrinses found only two products contained culturable bacteria ...

The best at-home COVID-19 tests are FDA-authorized, easy to use, accurate, quick, and can also detect flu viruses. Lauren Paige Richeson is an Editor at Health, where she’s been writing, editing, and ...

Known also as an E2 test, an estradiol test measures the amount of the hormone estradiol in your blood, which is essential for bone and joint health in females and helps control how fat is distributed ...

Eileen Agar, also known as Eileen Forrester Agar, was a British artist associated with Surrealism. She was born in 1899 in Buenos Aires, Argentina and passed away in 1991 in London. Her work in ...

A tuberculosis (TB) skin test involves a small injection of tuberculin under your skin, which a healthcare professional will check 48 to 72 hours later for a raised bump called an induration. Whether ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...

The top free internet speed test apps are Meteor for app-specific performance insights, Speedtest by Ookla for all-around network testing, and FAST Speed Test for quick ad-free checks. Several factors ...

An antinuclear antibody (ANA) test checks your blood for certain types of antibodies called autoantibodies. Autoantibodies commonly develop in people with autoimmune conditions, but they can show up ...