Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Amilcar has 10 years of FinTech, blockchain, ...

An axon is a long, slender fiber extending from a neuron (nerve cell), which transmits messages to other neurons, muscle cells, or glands. The messages are in the form of electrical impulses, known as ...

The esophagus is a muscular tube that moves food from your throat to your stomach. Problems like a hiatal hernia can cause heartburn and other symptoms. GERD is a common esophageal condition linked to ...

What Are Pulmonary Function Tests and Why Are They Done? Pulmonary function tests (or PFTs) are also called lung function tests. If you have symptoms or risk factors for a lung disease such as COPD, ...

As a person with a chronic illness, I'm no stranger to bloodwork. I used to pore over my lab results, googling the various meanings, and trying not to panic when a test fell out of range. Function ...

[1] /home/rao/R/x86_64-pc-linux-gnu-library/4.2 [2] /usr/local/lib/R/site-library [3] /usr/lib/R/site-library ...

Your eyes are relatively small parts of your body, but they’re immensely complex. Your eyes are full of dozens of different parts, all of which work together to produce your vision. One of the most ...

“Executive function” refers to the higher-level mental skills and processes involved in planning and accomplishing tasks. It allows us to manage ourselves and get things done. The frontal lobe is one ...

Your working memory, cognitive flexibility, and self-regulation are core components of executive function (EF), an interrelated set of mental skills that lay the foundation for advanced cognitive ...

Disordered executive function can impair a person’s ability to organize and manage behavior. Executive function is a broad group of mental skills that enable people to complete tasks and interact with ...

Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions. One of the ...