What if you stopped sleeping?

Is your lack of sleep slowly killing you? Many of us have experienced the effects of sleep deprivation: feeling tired and cranky, or finding it hard to concentrate. Sleep is more important for our brains than you may realise. Although it may appear you’re “switching off” when you fall asleep, the brain is far from…

How do hormones work?

What are hormones, and what do hormones do? Over our lifetimes, our bodies undergo a series of extraordinary metamorphoses: we grow, experience puberty, and many of us reproduce. Behind the scenes, the endocrine system works constantly to orchestrate these changes. Hormones are messengers that are released mainly by glands, and they travel in the bloodstream…

Why Do Mosquito Bites Itch?

Mosquito bites are just as pesky as the bugs themselves! The second you feel relief from scratching the bite, all of the itchings comes back. It can be distracting during the day and even interrupt your sleep schedule at night. It’s not fair that such a tiny bite can cause such a big nuisance, right?…

How Do Our Bodies Move?

How is it that we’re able to move so freely and effortlessly without a conscious, concentrated effort? Your brain works in conjunction with your muscles, which in turn work with your skeletal bones to produce a wide variety of movements. The brain sends signals via the nervous system, including the spinal cord and nerves, to the muscles. The muscles then contract to create movement. Your…

Flu Attack!

When you get the flu, viruses turn your cells into tiny factories that help spread the disease. First, some new viruses get caught in mucus and other fluids inside your body and are destroyed. Other viruses get expelled in coughs and sneezes. Second, lots of those new viruses are lemons. They don’t work that well.…

What is Flu?

Is it just a cold or the serious flu? Influenza, commonly known as the flu, is a contagious respiratory illness caused by viruses that infect the nose, throat, and lungs. It can range from mild to severe. Experts believe that influenza usually spreads through droplets that are created when those with the flu cough, sneeze or…

What is common cold?

We’ve all had a cold at one point or another; it entails an uncomfortable cocktail of symptoms like sneezing, coughing and a runny nose. But why do we get colds? How do they work? A runny nose, scratchy throat, and nonstop sneezing — you can’t miss the signs of a cold. But mystery shrouds a…

Why do we need sleep?

Every creature needs to rest. Giraffes, little babies, elephants, dogs, cats, kids, koala bears, grandparents, moms, dads, and hippos in the jungle — they all sleep! Just like eating, sleep is necessary for survival. Researchers have also shown that after people sleep, they tend to retain information and perform better on memory tasks. Our bodies all require…