Elizabeth Peterson
Latest articles by Elizabeth Peterson

Tick season: What to know about bites, removing ticks and tick-borne diseases
By Anna Gora last updated
Knowing how to prevent and safely treat tick bites can help reduce your risk of developing tick-borne infectious diseases, such as Lyme disease and Rocky Mountain spotted fever.

Lyme disease: Symptoms, diagnosis and treatment
By Elizabeth Peterson published
Lyme disease is an infection that is spread to humans through the bites of ticks carrying specific bacteria.

Animal sex: How birds do it
By Tia Ghose last updated
Animals have sex in all sorts of weird and wonderful ways. Birds have sex via an internal chamber called a cloaca that is present on both male and female animals.

Stroke: Symptoms, tests and treatment
By Elizabeth Peterson last updated
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: Causes, symptoms and treatment
By Anna Gora, Elizabeth Peterson last updated
Chronic fatigue syndrome is a complex, multisystem disease that can often go undiagnosed.

Flying saucers to mind control: 24 declassified military & CIA secrets
By Denise Chow, Elizabeth Peterson published
From programs to build supersonic flying saucers to atomic bombs, here are the most fascinating declassified military and CIA secrets.

What is normal blood sugar?
By Natalie Grover, Elizabeth Peterson last updated
Blood sugar, or glucose, is the main source of fuel for our body - keeping it in check is essential to our health.

Who invented the lightbulb?
By Elizabeth Peterson, Callum McKelvie published
Reference Though Thomas Edison is credited as the man who invented the lightbulb, several inventors paved the way for him.

Photos: Math Meets Art in NYC Exhibition
By Elizabeth Peterson last updated
A former hedge-fund manager in New York City is making art that any math or science geek can appreciate.

Why Does Rain Smell Good?
By Elizabeth Peterson last updated
There's a reason we love the scent after a good rain.

What is reiki and does it work?
By Elizabeth Peterson last updated
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.

Who invented the bicycle?
By Elizabeth Peterson published
Reference The bicycle has a complicated past fraught with controversy and misinformation.

Crystal healing: Stone-cold facts about gemstone treatments
By Elizabeth Peterson, Jonathan Gordon published
Reference Crystal healing is an alternative medicine technique that employs crystals and other stones as conduits for natural healing energy.

28 Devastating Infectious Diseases
By Wynne Parry, Elizabeth Peterson published
Countdown Contagious diseases have shaped human history and they remain with us. Here's a look at some of the worst, from ebola and dengue to the more recent coronavirus and Zika virus.

Mosquitoes: Biology, Repellents & Bite Relief
By Elizabeth Peterson published
Here's how to engineer a mosquito-free environment, and what to do if these annoying insects do bite.

Eiffel Tower: Information & Facts
By Elizabeth Peterson published
The iconic Parisian landmark has loomed over the city since 1889.

Niels Bohr: Biography & Atomic Theory
By Elizabeth Peterson published
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.

What is Acupuncture?
By Elizabeth Peterson published
Treatment with acupuncture needles does work to alleviate pain and nausea, studies show.

Head Lice: Symptoms, Treatment and Prevention
By Elizabeth Peterson published
It may take more than a month for symptoms of head lice to show.

Spider bites and bee stings: Symptoms and treatments
By Elizabeth Peterson published
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: Causes, Symptoms & Treatments
By Elizabeth Peterson published
Diarrhea is one of the most commonly reported ailments in the United States. It can be caused by parasites, viruses or bacteria.

24 Amazing Archaeological Discoveries
By Elizabeth Peterson published
From the great, lost library of King Ashurbanipal to the toxic tomb guarded by the terracotta warriors of Shaanxi, here are the 24 most incredible archaeological findings of all time.

The Scariest Places on Earth
By Andrea Mustain, Elizabeth Peterson published
Here are some of the creepiest, crawliest, most terrifying places on the planet.
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