Elizabeth Peterson

Stroke is the second leading cause of disability and death worldwide, and occurs when the flow of blood to the brain is disrupted.

Chronic fatigue syndrome is a complex, multisystem disease that can often go undiagnosed.

Blood sugar, or glucose, is the main source of fuel for our body - keeping it in check is essential to our health.

Reference Though Thomas Edison is credited as the man who invented the lightbulb, several inventors paved the way for him.

Reiki is a therapy often described as palm healing or hands-on-body healing in which a practitioner places hands lightly on or over a patient's body to treat or cure various ailments.

Reference The bicycle has a complicated past fraught with controversy and misinformation.

Reference Crystal healing is an alternative medicine technique that employs crystals and other stones as conduits for natural healing energy.

Here's how to engineer a mosquito-free environment, and what to do if these annoying insects do bite.

The iconic Parisian landmark has loomed over the city since 1889.

Niels Bohr won a Nobel Prize for the idea that an atom is a small, positively charged nucleus surrounded by orbiting electrons. He also contributed to quantum theory.

It may take more than a month for symptoms of head lice to show.

Treatment with acupuncture needles does work to alleviate pain and nausea, studies show.

Most bug bites and stings are usually just uncomfortable. However, some people are allergic to the venom of certain insects or spiders and can have severe, even life-threatening reactions.

Diarrhea is one of the most commonly reported ailments in the United States. It can be caused by parasites, viruses or bacteria.