Total testosterone measures the full amount of the hormone in your blood, while free testosterone represents the small, ...

Brad Reisfeld is a professor of chemical and biological engineering, biomedical engineering, and public health at Colorado State University. Your blood serves numerous roles to maintain your health.

Do you know what your hormone levels are? Should you? Your body is home to more than 50 hormones — chemical messengers that compose the endocrine system — and hormonal changes may reflect any number ...

Though my cortisol test results stressed me out, I'm glad I know more about how cortisol affects my health. Anna Gragert (she/her/hers) was previously the lifestyle editor at HelloGiggles, deputy ...

At last year’s CES, Eli Health announced the Hormometer — an at-home hormone test for cortisol that utilized saliva and a ...

A proliferation of at-home tests are available to check thyroid function, and other hormones, offering patients the comfort of testing these levels remotely. This availability is expected to grow to a ...

For most healthy women, optimal fasting insulin levels should be less than 25 mIU/L (milli-international units per liter), ...

Eli Health has expanded its saliva-based hormone tests to include testosterone and progesterone, using just a stick, your phone, and some spit.

Because the risk of many conditions increases with age, doctors generally recommend more frequent lab testing as you get ...