Can you solve “Einstein’s Riddle”? – Dan Van der Vieren

Before he turned physics upside down,a young Albert Einstein supposedly showed off his geniusby devising a complex riddle involving this list of clues.Can you resist tackling a brain teaserwritten by one of the smartest people in history?Let’s give it a shot.The world’s rarest fish has been stolen from the city aquarium.The police have followed the […]

Why sitting is bad for you – Murat Dalkilinç

Right now, you’re probably sitting down to watch this videoand staying seated for a few minutes to view it is probably okay.But the longer you stay put, the more agitated your body becomes.It sits there counting down the moments until you stand up againand take it for a walk.That may sound ridiculous.Our bodies love to […]

Why wildfires are necessary – Jim Schulz

There was a time before our ancestors smashed flint and steel together,when they felt the cold lack of fire in their lives.But anthropologists theorize that early hominidsrelied on lightning to cause forest fires,from which they could collect coals and burning sticks.Fire gave them the ability to cook food and clear land,and became central in many […]

Oxygen’s surprisingly complex journey through your body – Enda Butler

You breathe in about 17,000 times per day.It’s a process you rarely think about,but behind the scenes, a huge coordinated effort is playing out.Your vital organs,the gut,brain,bones,lungs,blood,and heartwork together to sustain your lifeby delivering oxygen to tissues throughout your body.Most of our cells need oxygenbecause it’s one of the key ingredients of aerobic respiration.That’s the […]

The surprising cause of stomach ulcers – Rusha Modi

In 1984, an enterprising Australian doctor named Barry Marshalldecided to take a risk.Too many of his patients were complaining of severe abdominal paindue to stomach ulcers,which are sores in the lining of the upper intestinal tract.At the time, few effective treatments for ulcers existed,and many sufferers required hospitalization or even surgery.Desperate for answers,Dr. Marshall swallowed […]

How does asthma work? – Christopher E. Gaw

It starts with a cough,or a wheeze.Soon, your chest feels tight.Your breathing speeds up and gets shallower,making you feel short of breath.These are common symptoms of an asthma attack.Around the world, more than 300 million people suffer from asthma,and around 250,000 people die from it each year.But why do people get asthma and how can […]

What causes body odor? – Mel Rosenberg

A pungent blend of onions, cheese, and cat urine with hints of…is that…wet goat?Most of us don’t need more than one whiffto identify that generally unpleasant, characteristic smell we call body odor.But it’s a surprisingly complex phenomenoninfluenced by our genetic makeup, age, diet, and hygiene.So what is this odor, exactly?Where does it come from?And can […]

What happens when your DNA is damaged? – Monica Menesini

The DNA in just one of your cellsgets damaged tens of thousands of times per day.Multiply that by your body’s hundred trillion or so cells,and you’ve got a quintillion DNA errors everyday.And because DNA provides the blueprintfor the proteins your cells need to function,damage causes serious problems, such as cancer.The errors come in different forms.Sometimes […]

How sugar affects the brain – Nicole Avena

Picture warm, gooey cookies,crunchy candies, velvety cakes,waffle cones piled high with ice cream.Is your mouth watering?Are you craving dessert?Why?What happens in the brain that makes sugary foods so hard to resist?Sugar is a general term used to describe a class of moleculescalled carbohydrates,and it’s found in a wide variety of food and drink.Just check the […]

What would happen if you didn’t drink water? – Mia Nacamulli

Water is virtually everywhere,from soil moisture and ice caps,to the cells inside our own bodies.Depending on factors like location,fat index,age,and sex,the average human is between 55-60% water.At birth, human babies are even wetter.Being 75% water, they are swimmingly similar to fish.But their water composition drops to 65% by their first birthday.So what role does water […]