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PODCAST

Do you really know?

You’ve heard about it, but do you really know it? In 3 minutes, we help you understand the true meaning behind the trends, concepts and acronyms that are making headlines. After listening, you will really know for sure.

education

All Episodes

5:03

Why has astrology come back into fashion?

Do you really know? ·

2025/08/05

Have you noticed more of your friends talking about their star signs of late? Maybe they try to guess the sign of people they meet, or come out with unexpected references to “Mercury in retrograde” or “Saturn return” over dinner. Maybe you’re into it yourself; and you have an app which sends you horoscope notifications all day long. It wasn’t so long ago that most people would just read horoscopes in the paper for a laugh, but these days astrology seems to be all the rage. Dedicated webpages are

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5:19

How can heatwaves impact our mental health?

Do you really know? ·

2025/08/04

We’re all aware of the physical risks associated with extreme heat, like dehydration and fainting for example. But a number of scientific studies have shown that heatwaves also have a major impact on people’s mental health. It’s important to highlight that the difference can be experienced by anyone, not just those with existing psychiatric conditions. But one thing is for sure: the vast majority of us are more anxious when temperatures are high. And it makes sense that we get more irritable when

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4:51

What is the ‘adult only’ trend, in public places all...

Do you really know? ·

2025/08/04

At a time when Europe faces a "baby bust," the role of children in public spaces is sparking new debate. Increasingly, restaurants, hotels, and even tour operators are rolling out “adults only” policies. Gone are the sounds of crying babies or kids running around tables, but this shift raises questions about individualism in society. In recent years, child-free options have doubled globally, with hotels and restaurants seeing a surge in demand for adult-only spaces. In the UK, chains like Warner

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5:35

Why do our tastes change as we get older?

Do you really know? ·

2025/08/04

Think back to when you were a kid and there was a type of vegetable you simply wouldn’t go near, let alone eat. It might have been broccoli, Brussels sprouts or spinach for example. Or perhaps another type of food like seafood, which now as an adult you actually quite like, or can tolerate at least. It’s not a coincidence; there are scientific explanations for why our taste preferences evolve with time. What tastes do children actually like most then? Does this hypersensitivity decrease with age

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4:45

What is digital sobriety?

Do you really know? ·

2025/08/03

Digital sobriety is all about reducing the ecological footprint of our daily digital lifestyles. That’s right, using your cell phone, PC or connected refrigerator all contributes to pollution. And it’s on the rise. The transition to digital technology is often presented as being a positive evolution, especially with regards to reducing household energy consumption. But current practices are contributing to global warming. How does online browsing contribute to pollution? So, what should we do

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4:48

What is a power nap?

Do you really know? ·

2025/08/03

A power nap is a short sleep which is long enough to give an energy boost, but not so long that you enter deep sleep. The term was coined by American social psychologist James Maas, a professor at Cornell University. Science shows that power naps could be of benefit to employees in the workplace, where efficiency is key. Sometimes, a power nap lasts just a few seconds, in which case it’s referred to as a microsleep. Dali would do it in a seated position, holding a spoon between his fingers. When he

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4:40

What makes someone a cat person?

Do you really know? ·

2025/08/03

People often refer to themselves as cat person or dog person, as well as meaning that they prefer this animal to the other, it implies that they identify with certain characteristics associated with their preferred pet, dogs are loyal, cats are smart, dogs can be trained to help people, cats cannot and so on. The social psychologist Samuel D Gosling of the University of Texas studied the personality traits of so-called “dog people” and “cat people”. He found that cat people tend to score higher on

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4:41

Why do we cry?

Do you really know? ·

2025/08/02

Humans are the only creatures on Earth that shed tears. Whether it's tears of joy, laughter, anger, pain, sadness, or fatigue, the emotions that bring about crying are diverse. You might be familiar with these emotional triggers, but have you ever wondered about the physiological explanations behind them? Let's start by categorising tears into three types. There are "basal" tears that maintain a continuous lubrication of the cornea, "reflex" tears that emerge when you're chopping onions, have dust

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4:54

Why do my eyelids twitch when I’m tired?

Do you really know? ·

2025/08/02

Have you ever noticed how your eyelids tend to start twitching at the end of a long day, or when you haven’t got enough sleep the previous night? Well, first of all there’s no need to panic, it’s actually a benign phenomenon. It’s known as benign fasciculation syndrome, or myokymia. But still there are some things you can do about it. What can be done to avoid this? What if the problem persists over time? In under 3 minutes, we answer your questions! To listen to the last episodes, you can click

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4:59

Why do some people confuse their left and right?

Do you really know? ·

2025/08/02

Knowing the difference between right and left is crucial for various daily activities like driving and navigation. While most of us take this skill for granted, a significant portion of the population faces challenges with it. A study published in 2020 in the Journal of Experimental Psychology estimated that one in six adults struggles to distinguish their right from their left. Of course, if you turn the wrong way when out in the street, it can be a minor inconvenience. You might get lost, or turn

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5:07

Can going through a breakup really make us fall sick?

Do you really know? ·

2025/08/01

Restless sleep, a hollow feeling inside and the sting of heartbreak; most of us have been through that kind of ordeal at least once in our lives.Let’s be honest: when it comes to your career and work life, a breakup doesn’t exactly bring out the best in your productivity. And at work, you can’t always afford to be distracted. Earlier in 2024, a Filipino lawmaker proposed an unexpected solution: a proposal to introduce a period of so-called “heartbreak leave”. How would heartbreak leave work? Is

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5:03

Why do we lose our appetite when we fall in love?

Do you really know? ·

2025/08/01

A lot of things happen to our bodies when we fall in love. Some of the obvious physical reactions are getting butterflies in the stomach, dilated pupils and a racing heartbeat. Another one that many of us have experienced is losing our appetite. You know the feeling: you're so smitten with your new crush that you can barely eat a bite. You skip breakfast, lunch, and dinner, and instead spend hours daydreaming about them or talking to them on the phone. What's actually going on inside the body

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4:31

What is London's No Trouser Day?

Do you really know? ·

2025/08/01

You may have seen it on the news, on social media, or even on the tube: hundreds of people riding the underground with no trousers on, in the middle of winter. On Sunday the 7th of December London commuters braved the cold to strip off to their underwear for this unusual event. The No Trousers Tube Ride, as it is officially called, is an annual event that takes place on the first Sunday of January. It started in London in 2009, inspired by the No Pants Subway Ride, which was created by Improv

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5:03

What's the best way to choose my toothpaste?

Do you really know? ·

2025/07/31

Choosing the right toothpaste can be a bit of a challenge, either because there's a plethora of options or because you might have specific requirements. It's not always clear what these products contain, whether it's advisable to steer clear of certain toothpaste, or if the organic versions are just as effective.The main goal is to tackle dental plaque before it turns into tartar, preventing issues like cavities, bad breath, and bacterial infections. According to tooth-doctor.com, a crucial factor

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4:35

Do anti-anxiety patches really work?

Do you really know? ·

2025/07/31

There are different types of anti-anxiety patches, but one of the most popular ones is from a company called NuCalm, they say that its discs provide the neurochemistry to accelerate the onset of the relaxation response. You may have seen them on celebrities like Meghan Markle, who was recently spotted wearing a NuCalm biosignal processing disc on her wrist. It’s a small blue sticker which claims to have a calming effect on the wearer by emitting signals or frequencies that affect the brain and the

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5:14

What's the right way to burst a pimple?

Do you really know? ·

2025/07/31

If there are any teenagers out there listening in, chances are you have faced an acne breakout at some point in the recent past, or perhaps you're even going through that now. Rest assured, that was the case for many of us adults too when we were your age, and for some people, acne continues to be a nuisance into adulthood. It’s tied to a number of factors including hormonal shifts, genetics, lifestyle, and diet. These blemishes basically result from an excess of sebum. Regular listeners will

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4:51

What should you eat when it’s hot?

Do you really know? ·

2025/07/30

In June 2025, the Met Office announced that the UK had had its warmest spring on record, with a mean temperature of 9.5°C, beating the previous mark set just a year prior in 2024 and exceeding the long term average by 1.4°. It’s becoming increasingly important to adapt to periods of extreme heat, and one way to make stiflingly hot days more bearable is to adjust what you eat. What should be avoided then? And what about drinks? In under 3 minutes, we answer your questions! To listen to the last

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4:59

Resale, repair, rental, refill… could this be the new...

Do you really know? ·

2025/07/30

November is synonymous with Black Friday, great deals but what cost? Over consumption is endangering our already fragile planet. Is it time to change our ways? This week Do You Really Know is highlighting concepts and initiatives about reducing our consumption.You might have heard of ‘reduce, reuse, recycle’ a motto with the aim of encouraging us to think about how we consume and consider the impact that buying lots of stuff has on the planet. But now the high end department store Selfridges has

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4:52

What are energy vampires?

Do you really know? ·

2025/07/30

Have you ever noticed how certain people just seem to drain your emotional energy any time you see or speak to them? It could be a work colleague, a friend, a neighbour or even your partner. Maybe you’ve shrugged it off, telling yourself that’s just how that person is and that they need to lean on you for support. The chances are you could be dealing with an energy vampire without knowing. What do energy vampires feed on? How do energy vampire relationships start? How can you protect yourself from

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5:19

Why do some stroke victims wake up with a foreign...

Do you really know? ·

2025/07/29

The idea might seem like something out of a fantasy, but “Foreign Accent Syndrome” is a genuine, albeit very rare, neurological condition! It sees a person begin to speak with an accent different to the one they had prior to having a stroke; one which makes them sound like they come from an entirely different country! Since the first case was discovered in France in 1907, there have only been about 100 documented cases worldwide, according to the Cleveland Clinic. But certain cases have attracted

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