science

Why It's Vital For Children To Play Outdoors

Earlier this year, an American mother was arrested for allowing her nine year old daughter to play unsupervised in a park while she finished her shift at work. Even though this story got a lot of press, it is not a standalone event. Recently, there has been a rash of cases reported where parents have been arrested for allowing children to play in the park alone, walk to the park alone, and even just play unsupervised right outside their own home.


Ask LH: Is It Safer To Have My Phone In Flight Mode When I Sleep?

Hey Lifehacker, Is it true that you shouldn’t keep your mobile phone near your head while sleeping? I want to purchase a sleep cycle app that requires keeping the phone under my pillow. Obviously, I don’t want this to affect my health. Would it help if I kept it in airplane mode each night before bed?


Why Sports Drinks Are Pointless For Most People

A proposal to allow sports drinks manufacturers to feature health claims has led to something of a spat between the drinks industry and a health lobby group. The heart of the matter is whether “sport drinks” are, in fact, healthy.


How To Blitz Your Technology, Science, Maths And Engineering Exams

With HSC exams coming up, students will be preparing to sit a range of different exams, from English to music to biology to languages. For study in science, technology, engineering and mathematics (STEM) there are two sets of tactics for preparation: the usual, well-established ones; and the lesser-known but evidence-based approaches that have a powerful impact on learning.


Paper Towels Versus Hand Dryers (And Which Is Actually More Hygienic)

There’s a lot of debate about which method of drying your hands is actually the cleanest. This video explores the benefits of both and explains which one actually helps keep your hands the most clean.


Curb Specific Food Cravings With 'Sensory Simulation'

If you find you are constantly craving sweet or salty foods, a recent study showed that over-stimulating your brain with pictures of those foods may help kill your desire for them.


How To Stop Confusing Correlation And Causation

Just because two statistics appear to follow the same pattern, that doesn’t mean you can assume that one causes the other. Jonathan Borwein & Michael Rose from the University of Newcastle explain the fundamentals of correlation and causation.


Can You Train Your Brain To Crave Healthy Foods?

The mere sight of a slice of gooey chocolate cake, a cheesy pizza, or a sizzling burger can drive us to eat these foods. In terms of evolution we show preference for high calorie foods as they are an important source of energy. We tend to crave these rich, tasty foods not only when we are hungry, but when we are emotional, bored, or stressed out.


Help Children Avoid Depression By Teaching Them To Reframe Setbacks

Depression is a very real problem, not just for adults but for children as well. Psych Central points out one thing parents and teachers could do that can help prevent children from suffering from depression: teach a specific type of problem solving and thinking skill.


Eight Common Sleep Myths That Can Affect Your Slumber

You probably know that you don’t really eat eight spiders every year in your sleep, but did you know that there are several other sleep fallacies floating around that could be affecting your slumber?