science

Beyond Probiotics: Can You 'Hack' Your Microbiome?

Trillions of tiny creatures call your body home, including bacteria, viruses, fungi and others. They’re not always bad news, and in fact, our health depends on having a thriving collection of microbes. Which leads to the obvious question: can we hack our health by hacking our microbiome?


Why Paracetamol For Back Pain Can Be Bad For You

Around a quarter of the world’s population is affected by low back pain, one of the ten leading causes of disability globally. But the painkiller routinely prescribed to most of these people may not only be unhelpful, it may actually be causing harm.


What 'Probably Causes Cancer' Really Means

One of the most commonly-used pesticides in the world was recently declared a probable cause of cancer — but that doesn’t mean what you think. Here are some stick figures to explain it to you.


How To Keep Your Diet Healthy This Easter

As you tuck into your crème eggs, dark chocolate bunnies and scrumptious hot cross buns this Easter long weekend, remember that decadent treats and weight management don’t always have to be mutually exclusive.


Career Spotlight: What I Do As A Research Geologist

It’s appealing to think that a geologist spends most of their time scouring remote landscapes with a rock hammer and a magnifying glass, but in reality they spend more time in a laboratory than a Land Rover. The work of a research geologist is eclectic, analytical and scientific.


How Particle Accelerator Maths Helped Me Fix My Wi-Fi

Electromagnetic radiation — it might sound like something that you’d be better off avoiding, but electromagnetic waves of various kinds underpin our senses and how we interact with the world — from the light emissions through which your eyes perceive these words, to the microwaves that carry the Wi-Fi signal to your laptop or phone on which you’re reading it.


Why We Have To Learn To Live With Uncertainty

Experiments dating back to the 1960s show people have less of a reaction to viewing an unpleasant image or experiencing an electric shock when they know it’s coming than when they’re not expecting it. That’s because uncertainty, a long-known cause of anxiety, makes it difficult to prepare for events or to control them.


What Marijuana Actually Does to Your Brain and Body

Marijuana. Pot. Weed. Whatever you call it, it’s the most popular illegal drug in the world, gaining support for legalisation for both medicinal and recreational purposes. But what does marijuana actually do to us? Let’s take a look at this fascinating drug, its health effects, and potential concerns about using it.


You May Actually Fall Asleep Faster If You Try To Stay Awake

When you are exhausted, nothing is worse than lying in bed desperately trying and failing to fall asleep. You might have better luck drifting off into dreamland if you try to stay awake instead.


Ask LH: What Is The Right Vaccination Schedule For My Child?

Hey Lifehacker, With all the talk of vaccines and immunisation in the media, what child vaccinations are a one-off and which ones need to be boosted or reapplied to protect themselves and others?