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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

5:08

Does voluntourism do more harm than good?

Do you really know? ·

2025/07/26

Voluntourism is the practice of volunteering one’s labour to a charitable cause in a developing country, in return for a soul-cleansing, perspective-changing, CV-bolstering experience. Perhaps a bit cynical? But with good reason. Whilst it could be a mutually beneficial redistribution of wealth from the developed world to the developing, voluntourism harbours a dark and exploitative underworld. In 2021, NPR.org reported that the industry was worth an estimated $3 billion per year, according to

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4:53

Can I cure my fear of spiders?

Do you really know? ·

2025/07/26

If just thinking of spiders is enough to make the hairs stand up on the back of your neck, or you jump any time you see one, the chances are you suffer from arachnophobia. It affects up to 15% of people according to the Cleveland Clinic, making it one of the most common phobias out there. As it turns out, human fear of spiders may well be down to evolution. Researchers from Germany, Austria and Sweden looked into the question in more detail for a study published in Frontiers in Psychology in

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4:26

Do I have poor blood circulation?

Do you really know? ·

2025/07/26

If you’ve got heavy legs, nighttime cramps, varicose veins or swelling in the legs, you may have blood flow issues. When you consider that our bodies contain an incredible 60,000 miles worth of blood vessels, it’s really not uncommon. Something like a varicose vein is usually relatively harmless. Other conditions include hemorrhoids, and phlebitis, which is a blood clot in a deep vein. Worse still are varicose ulcers, which are a complication of varicose veins or phlebitis. It’s important to know

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4:54

Why do I attract mosquitoes more than other people?

Do you really know? ·

2025/07/25

Warm summer nights often bring unwelcome guests into our homes in the form of mosquitoes. For now we fortunately don’t have any mosquito-borne diseases being transmitted to humans in the UK, but with the warmer temperatures brought on by climate change, it may only be a matter of time until that changes. You may have noticed that some of us seem to attract more mosquito bites than others, even within the same household or having been at the same gathering. A popular belief is that mosquitoes have

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5:01

How can I keep my exercise eco-friendly?

Do you really know? ·

2025/07/25

It's back to school! Do You Really Know is dedicating a special week to sport. Because moving and doing regular physical activity is important for our physical and mental health! Listen again to our episodes about sport! One of the biggest challenges that we have been facing and will be continuing to face in the coming years is protecting our planet. So it’s worth reflecting on how we can exercise in a more eco-friendly manner. We turn to exercise for leisure, entertainment and to stay fit and

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5:12

What is sex surrogacy, the controversial sex therapy?

Do you really know? ·

2025/07/25

It may be a little taboo to talk about it, but there are a lot of people out there who, for a variety of reasons, don’t have as much sex as they would like, or arguably need. And there’s actually a form of therapy out there which is specifically designed to help people become more comfortable with sex and intimacy. The idea of sex surrogacy started catching on in Europe in the 2000s, and these days it’s actually regulated and even covered by social security in some countries, like Switzerland,

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5:04

Should I quit air travel to save the planet?

Do you really know? ·

2025/07/24

Flying is far from being the most eco-friendly means of transport. Right now it’s responsible for around 2% of global carbon emissions, but that could grow to as high as 16% by 2050.With the notable exception of travel restrictions in the last two years, the airline industry has gradually been transporting more and more passengers for decades now. While that continued growth is impressive, we have to recognise that along with it come certain undesirable effects on the environment. Now that the

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5:02

Why is exercise good for my skin?

Do you really know? ·

2025/07/24

It doesn’t matter which fancy moisturizers or expensive skincare routine you use, nothing quite matches how your skin looks and feels after an intense workout. Just take a look in the mirror after you’ve finished exercising and you’ll likely see smooth skin and a glowing complexion. That’s right, in addition to the positive impact on our physical and mental health, exercise can also improve our skin health. And there are studies out there which have backed it up. For example, biology journal Aging

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5:19

What is space tourism?

Do you really know? ·

2025/07/23

Amazon founder Jeff Bezos stepped down from his position as the company’s CEO to focus on other projects. He’ll remain executive chairman at Amazon but now wants to dedicate more time to other projects, including his space tourism company Blue Origin. Following that surprise announcement, British business magnate Richard Branson also declared his desire to go into space with his company Virgin Galactic. Some have labelled these developments as a new dawn for space tourism. So who’s earning

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5:19

Could summer shading pose a threat to your...

Do you really know? ·

2025/07/23

Summer is here! The sun’s out; you’ve got a week or two off work and the beach and sea are calling. It’s time to relax, soak up some much-needed vitamin D, and why not open the door to new romantic encounters. That’s all well and good if you’re single; but if you’re in a relationship, bear in mind that summer shading is becoming more and more common. It basically means putting a romantic relationship on hold over the summer in order to enjoy a few carefree flings How common is summer shading then

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4:31

Why do I have white spots on my nails?

Do you really know? ·

2025/07/23

To understand where white spots come from, we must first explain how nail growth works.If you’ve ever had white spots on your nails before, you may have been dismissively told that it's down to a lack of calcium or zinc. Basically, some mineral-deficiency. But this popular belief doesn’t really have any basis in fact. According to Healthline, nails grow an average of 3 millimeters per month. Their composition is made up of keratin, a protein, and just 0.03% calcium. So white spots are certainly

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5:08

What is vitamin D?

Do you really know? ·

2025/07/23

This summer, relax and learn with Do You Really Know! It's time to learn all about the concepts, words and expressions that surround the summer season! What is vitamin D? Vitamin D was discovered in 1922 by American biochemist Elmer McCollum, who was nicknamed Dr Vitamin by Time Magazine. He found that cod liver oil could still prevent rickets in rats, despite its vitamin A having been removed. From this observation, he deduced that it contained a different substance which he called vitamin D. A

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4:47

What are the best holiday destinations?

Do you really know? ·

2025/07/22

Everyone has their own expectations when it comes to summer holidays. Regardless, you don't necessarily have to travel far to have a good time. At least, that's what 31% of British people think, according to research from TripAdvisor. That’s the proportion of people who plan to holiday exclusively in the UK this year. But for others, going on holiday is all about turning dreams of exotic destinations into a reality. Let's discuss some of the top domestic and international destinations for

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4:52

Is binge drinking over in the UK?

Do you really know? ·

2025/07/22

Binge drinking is defined as consuming 5 or more drinks for a man, or 4 or more drinks for a woman, in about 2 hours, and the UK has a rather notorious reputation for drinking to excess, especially when abroad. But according to a 2022 survey from Drinkaware, 26 % so nearly a third of 16 to 24-year-olds in the UK are now completely teetotal, meaning they do not drink at all. Add to this that 29% of pub visits and 37% of restaurant visits are also alcohol free. While the non-alcoholic beverage

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4:48

How does the "Scully Effect" raise young women's...

Do you really know? ·

2025/07/22

The musical film The Little Mermaid was released in cinemas on 24 May 2023. This movie highlights the importance of representations in the media. This effect has a name: the Scully Effect. The combination made for an unprecedented representation of women on TV at the time, with audiences far more accustomed to seeing scientists played by white men. The fields of Science, Technology, Engineering and Mathematics are grouped together under the name of STEM professions. And Dana Scully was one of the

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4:26

Why are you exhausted after a day in the sun?

Do you really know? ·

2025/07/21

You’d think a day spent lounging on the beach would be the ultimate recharge. No deadlines, no emails, just rest and relaxation. And yet, by the time you head home, you’re wiped out. Not just relaxed, completely drained. It's supposed to be restful, so why does it feel like you’ve just run a marathon in flip-flops?It’s not just the sun, it’s the heat, the humidity, and the work your body puts in to stay cool. Even when you're lying still, your internal systems are hustling to keep your core

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4:37

What is Ramsay-Hunt syndrome, the disorder affecting...

Do you really know? ·

2025/07/21

In June 2022, Canadian superstar singer Justin Bieber took to Instagram to reveal that he has a rare neurological disorder called Ramsay Hunt Syndrome. He took a break from his world tour, and would do the same just a few months later, again using social media to tell fans about suffering with exhaustion and needing to “make health the priority”. After trying to restart the tour, he would eventually be forced to cancel his remaining concert dates. How long have we known about this syndrome? What

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4:32

Is feeding birds in your garden a bad idea?

Do you really know? ·

2025/07/21

Leaving food out for the birds seems like a harmless and even generous idea, but research by the British Trust for Ornithology is showing that bird feeders might be doing more harm than good. Between 2008 and 2018, chaffinch numbers dropped by 29 per cent in the UK, while 67 per cent of the country's greenfinches were lost, the study reveals. How do bird feeders spread this disease? How can I keep using my bird feeder safely? Are there other ways to support birdlife in your garden? In under 3

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4:50

Why does not getting enough sleep make you selfish?

Do you really know? ·

2025/07/20

Not getting a good night’s sleep can certainly leave you feeling grumpy and groggy, but can it also make you selfish? Sleep experts at the University of California, Berkeley certainly seem to think so, and apparently even losing just one hour of sleep is enough to make you less generous towards others and that includes friends and family. The team conducted a number experiments which were published in the open-access journal. Over 100 participants were asked to fill out sleep diaries over four

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5:03

What is an eco-friendly beach?

Do you really know? ·

2025/07/20

This summer, relax and learn with Do You Really Know! It's time to learn all about the concepts, words and expressions that surround the summer season! What is an eco-friendly beach? For many people, beaches are synonymous with the summer holiday season. Beach holidays have been popular since the second half of the 19th century, and are the archetypal form of mass tourism. With millions of people indulging in such getaways each year, it goes without saying that there’s a significant environmental

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3,282 results

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