Thyroxine (T4) is the main hormone your thyroid makes. Your thyroid hormones are important because they control how your body uses energy from the food you eat. (Photo Credit: iStock/Getty Images) T4 ...

An at-home liver test can check for liver disease or help monitor an ongoing condition by measuring certain proteins, enzymes, and bilirubin in your blood. Taking this test can help shed light on the ...

Our organs function as an integrated system, but they can age at different rates. Aging in particular organs can contribute to numerous aging-related diseases, so it's important for us to take care of ...