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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

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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5:54

What are the world's least safe travel destinations?

Do you really know? ·

2025/07/18

In past episodes of Do You Really Know, we’ve talked about the best holiday destinations in the UK and abroad, as well as how to find the most budget-friendly options. Today though, we’re going to talk about security. The idea of visiting many countries all over the world is enticing, but it's important to remember that some destinations are significantly more dangerous than others. Rather than making decisions based on intuition, why not consider using guidance that’s actually based on facts and

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5:05

Why do people get angry when they drive?

Do you really know? ·

2025/07/18

According to Compare the Market research from November 2023, 69.5% of UK drivers say they experience road rage, with 12% admitting it happens to them once a week or more. Maybe you've witnessed road rage before as a passenger in a friend or family member’s car. You get in, everything is going smoothly, and all of a sudden another driver tailgates them or fails to indicate in front of them. From one second to the next, the person you know is replaced by a screaming, cursing maniac! Is everyone

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5:11

How long do I have to wait to swim after eating?

Do you really know? ·

2025/07/17

I’m sure at some point as a child on holiday you were told not to go swimming right after eating. Popular belief suggests that we should wait a certain amount of time before getting into the water, in order to let our bodies finish digesting. Some parents swear by a 30-minute rule, while others say up to two hours, depending on how heavy a meal has been consumed! But in reality, we know that digestion can actually take more than three hours. Shouldn’t we all be waiting at least three hours in that

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5:14

How do pheromones affect our sexuality?

Do you really know? ·

2025/07/17

Have you ever seen perfumes advertised as containing pheromones and therefore increasing your sexual attractiveness or libido? Sounds too good to be true, right? According to Healthline.com, pheromones are "chemical substances that are secreted outside of the body in fluids like urine and sweat." The portal explains that they’re produced by a wide range of animals and plants, but that it’s still not known for sure whether they even exist in humans. That hasn’t stopped pheromones from being hyped up

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4:48

What are the best ways to have sex in water?

Do you really know? ·

2025/07/16

Having sex in water is a common fantasy for a lot of people. We’re talking about in the sea, in a jacuzzi or in a swimming pool for example. A lot of TV shows and films have made it seem like a must-try experience.In reality though, salty seawater or a chlorine-filled pool don’t exactly make for the most comfortable sex. Not to mention any sand at the beach! And there are health risks too, for women in particular, as seawater or pool water can disrupt the pH balance of the vaginal mucous

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4:52

Do I really need to flush toxins out of my body?

Do you really know? ·

2025/07/16

There are an increasing number of trends and products out there to rid your body of toxins, such as infrared saunas, liver-purifying supplements and detox diets. But what exactly are toxins? According to the Cambridge Dictionary, a toxin is “a poisonous substance, especially one produced by bacteria, that causes disease.” However, today we tend to use the word toxin to refer to all the harmful substances present in the body such as food additives, pesticides, alcohol, gluten or pollutants

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4:58

Why is laughing contagious?

Do you really know? ·

2025/07/16

Have you ever found yourself laughing at a completely inappropriate moment? If so, you know just how embarrassing it can be. And it gets even worse when you make eye contact with someone else and they start laughing too. It then becomes twice as hard to stop. Much like a strong flu, a powerful and genuine laugh can quickly spread to an entire group! When someone starts laughing spontaneously, their joy can be infectious, causing everyone at the table to laugh, sometimes without even knowing what

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5:15

Who are digital nomads, the new generation of remote...

Do you really know? ·

2025/07/15

Since the first COVID-19 lockdowns in 2020, remote work has become commonplace in companies around the world. Working from home offers many advantages, and “work from anywhere” policies take this freedom one step further. Many employees have said “yes, please” and packed their bags to become digital nomads. Has the digital nomad lifestyle always been popular? What kinds of jobs do digital nomads do? What might the future of digital nomads look like? ⁠In under 3 minutes, we answer your questions

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5:25

What’s the worst kind of meat for the environment?

Do you really know? ·

2025/07/15

According to The Telegraph, Brits eat an average of 220g of meat per day, which is almost double the global average. And agriculture is responsible for 12% of the UK’s greenhouse gas emissions according to government figures from 2022. So it’s clear that our food consumption can have a real impact on the environment. While red meat is often labelled as the worst offender environmentally, in reality things aren’t quite so simple. Can we agree on exactly what types of meat we mean when we say "red

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4:55

What are yellow flags in dating?

Do you really know? ·

2025/07/15

In recent years, dating has become a lot more structured. Terms like "green flags" and "red flags" are now part of everyday language, and the criteria for evaluating potential partners have become more specific and defined. Of course, the main idea behind these colour codes is to help you figure out if someone is right for you based on how they behave. But lately even the flag system has become a little less straightforward, with the introduction of "beige flags" and "yellow flags". Now beige

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4:59

What's the ideal temperature to stay healthy at home?

Do you really know? ·

2025/07/14

The World Health Organisation suggests that 18° C is the perfect temperature to set your heating to, but in reality that is just an average. There are a number of variables to take into account. For example, certain rooms might need to be heated more than others. And generally speaking, when we’re away from home or sleeping at night we can turn the heating down or off completely. That’s right, it can depend on age and medical conditions like thyroid problems for example. Where a certain

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3,326 results

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