Calcium is a nutrient that all living organisms, including humans, need. Dietary sources of calcium include dairy products, green leafy vegetables, nuts, seeds, and fortified products. Calcium is the ...

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Somer G.

The bacteria and other microbes that live in your gut are known as your “gut microbiome.” They help you digest food and may support immune, heart, and brain health. However, disruption in your gut ...

Queen Rihanna once said that she only gets three or four hours sleep a night, while Sydney Sweeney claims that she can cope on just two. Meanwhile, Madonna once told Rolling Stone that she struggles ...

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 ...