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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

5:12

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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4:48

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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4:52

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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4:26

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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5:39

Can our bodies really catch up on lost sleep?

Do you really know? ·

2025/07/20

We talk about sleep needs a lot on Do You Really Know, so regular listeners will be well aware that we need 7-9 hours each day, and that not getting enough can lead to negative health impacts. Regardless of who you are, when you get less than seven hours of sleep, you start accumulating what’s known as sleep debt or sleep deficit. The Sleep Foundation defines it as: “the difference between the amount of sleep someone needs and the amount they actually get.” What can I do in the short term if I

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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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4:43

How can I ease my foot pain?

Do you really know? ·

2025/07/19

Feet carry our body weight and bear the impact of every step we take. Furthermore, they play an active role in balance control, thanks to sensors located along our tendons. Whether you’re on the bus, relaxing at home, or taking a walk while listening to your favourite podcast, take a moment to look at your feet. Believe it or not, they account for a quarter of the bones in your body. Each foot has 14 phalanges, which are the toe bones in the forefoot, 5 metatarsals and 7 tarsals at the back of

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5:00

Could intentional inflexibility help you succeed at...

Do you really know? ·

2025/07/19

Multitasking, or the art of juggling several tasks at once, is more common than ever before in the workplace. In 2022, a German think tank called Next Work Innovation released a study which showed that knowledge workers are interrupted on average every four minutes during the working day! In a past episode of Do You Really Know, we discussed how our brains manage to cope with multiple demands at once. Suffice to say: it’s not easy! It can be really tricky to focus again after a distraction, and

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4:47

Is Bedrotting bad for your health?

Do you really know? ·

2025/07/19

Whether it’s reading, journaling, enjoying breakfast, or scrolling through social media, these are just a few activities people indulge in while lounging in bed. For some, this has evolved into an art form, popularized by a viral TikTok trend known as “bed rotting.” This habit embodies a laid-back attitude, where productivity and responsibilities are momentarily cast aside in favor of a few minutes or hours of procrastination. Eleanor McGlinchey, a sleep psychologist at Manhattan Therapy Collective

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4:52

Why do men always take care of the barbecue?

Do you really know? ·

2025/07/18

Every summer, the pattern repeats itself: the drinks are flowing, the atmosphere is relaxed but as soon as it’s time to light the grill, men gravitate toward the fire while women handle everything else. The result is a quiet but familiar gender split. And it’s not just anecdotal. According to an OpinionWay survey for Campingaz in 2015: when preparing a barbecue 75% of women do the shopping, 72% draw up the menus, 48% prepare the dishes, but when it comes to cooking the food, only 8% of them take

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3,297 results

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