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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

4:43

Can naps keep the brain healthy?

Do you really know? ·

2025/07/05

If you like to take a short nap during the day you might be doing your brain a favor. According to a study published in the journal Sleep Health in June of 2023, people who have a genetic predisposition to napping regularly have larger brain volumes than those who don’t. This suggests that napping may protect against brain shrinkage, which occurs faster in people with cognitive problems and neurodegenerative diseases. But before you rush to your bed or couch, there are some caveats to

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4:53

Can women really get a core-gasm from exercise?

Do you really know? ·

2025/07/05

We all know that exercise does wonders for our bodies. But what might come as a surprise is that it can even bring us to climax, at least for women. Now, that might sound a bit far-fetched, but it's actually true: achieving the ultimate pleasure during a workout is possible. According to Medicalnewstoday.com, renowned sexologist Dr. Alfred Kinsey was the first to document instances of coregasms, noting links between orgasms and exercise in his 1953 book Sexual Behavior in the Human Female. Now bear

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5:01

How can I get cheaper flight tickets?

Do you really know? ·

2025/07/04

According to recent data from personal finance website NimbleFins, the average British family of four spent around £4,678 for a 9-night holiday abroad in 2023. And of that total amount, £1,828 went towards flights, nearly 40%, reflecting the reality that air fares still account for a high proportion of the total cost of a holiday. And experts say that flight prices are set to continue rising in the coming years, as more expensive sustainable aviation fuels are brought in to replace traditional

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5:20

What does eating junk food do to our brains?

Do you really know? ·

2025/07/04

We all know about the physical consequences of having an unbalanced diet, and one that includes a lot of junk food in particular. In the short term eating lots of it can lead a person to put on weight and see their blood pressure increase, while it can also potentially lead to long-term conditions like diabetes or heart disease. But studies are increasingly clear on the fact that junk food can also impair our brain functions, particularly memory. Scientists have not yet fully explained this

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4:03

How do you get rid of fruit flies in the kitchen?

Do you really know? ·

2025/07/03

These tiny insects, which reproduce at an astonishing rate, often invade our kitchens. They are particularly attracted to damp areas, stagnant water, organic waste, and ripe fruit—especially in warm weather. Fruit flies, or midges, can lay up to 100 eggs a day. While studies indicate that flies can carry bacteria, viruses, and parasites, the midges in our homes are generally harmless. They can transmit bacteria and minor food-borne viruses, but rarely cause serious diseases. This is reassuring, but

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4:54

Could mate poaching be a threat to your relationship?

Do you really know? ·

2025/07/03

All romantic relationships come with challenges, and one of the biggest hurdles tends to be fidelity. Over the years, there have been a number of studies on the prevalence of cheating, but it’s tricky to know how reliable data from those studies is. After all, it relies on people owning up to unfaithful behaviour. Generally speaking though, surveys from the likes of YouGov have suggested that around one in five people in the UK have had an affair at some point in their life. Why don’t these mate

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4:58

Are mosquitoes good for anything?

Do you really know? ·

2025/07/02

We’ve all gotten frustrated after squashing the tenth mosquito ruining a beautiful summer evening — especially after days of relentless itching.Mosquitoes are a global nuisance. In tropical regions, they’re more than just annoying: they can transmit serious diseases like malaria, dengue fever, and Zika virus. But despite all the efforts, these tiny insects continue to thrive — and buzz in our ears all summer long. But why do mosquitoes bite us? And why does it itch so much? And by the way… why

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4:43

Are gas cookers dangerous?

Do you really know? ·

2025/07/02

Gas cookers are a common feature in many kitchens, often preferred by chefs and home cooks for their precise temperature control but gas cookers emit a number of harmful substances when they are in use and even when they are off that can pollute the indoor air and harm your health. Nitrogen dioxide, or NO2, is a gas that is produced when natural gas is burned at high temperatures. It can damage your airways and worsen asthma and COPD. A recent report by the Dutch Lung Foundation found that gas

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5:30

Do tongue scrapers actually help with bad breath?

Do you really know? ·

2025/07/02

According to the U.S. Department of Health and Human Services, our mouths host no fewer than 700 species of microbes, including “germs like bacteria, fungus and more”. Some are helpful in producing vitamins, or aiding in digestion, for example, but others can cause problems like bad breath. Because many of these microbes live on the tongue, recent years have seen increased use of oral hygiene devices specifically designed to clean the top of the tongue. One kind is a tongue scraper. Now in case

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5:27

What is the Pygmalion effect?

Do you really know? ·

2025/07/01

Have you ever wondered how our expectations can impact the way we perceive and interact with others? Well, it’s actually been demonstrated that beliefs and attitudes can lead to outcomes that align with those beliefs, due to what’s known as the Pygmalion effect. 20th century American psychologist Robert Rosenthal coined the term in 1968. He had teamed up with San Francisco elementary school principal Lenore Jacobson to conduct a groundbreaking experiment. It showed that teacher behaviour and

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4:32

What is cybersickness, the mysterious condition...

Do you really know? ·

2025/07/01

You may well have experienced motion sickness or travel sickness in the past. Well, cyber sickness is a modern ailment that follows a similar kind of logic, or rather the opposite logic. Instead of moving while feeling still, like when you’re on a boat or in a car, with cyber sickness you perceive movement while you’re actually still. But the result is the same: your brain fails to adapt to this dissonance, and hence brings on nausea, dizziness, cold sweats, and other balance disorders. This can

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4:39

Why do we kiss?

Do you really know? ·

2025/06/30

Kissing on the lips feels so natural… and yet, it’s far from universal. In some cultures, romantic kissing doesn’t even exist! So why, in our society, has kissing become such a strong symbol of love and passion? It turns out, kissing might be one of the oldest gestures in the human playbook. For decades, historians pointed to ancient Indian texts, the Vedas, written around 1500 BCE, as the earliest written references to kissing. So where does kissing come from? Does kissing have anything to do

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4:32

Why does hair turn grey?

Do you really know? ·

2025/06/30

Greying hair can be triggered for a number of reasons, genetics; some people’s hair turns grey earlier than others. Stress, a recent study in mice showed that stress can cause stem cells to leave the hair follicle and migrate to other parts of the body, leaving no cells to produce melanin. Some Illnesses like thyroid disease and of course ageing. But could the days of grey hair be over? Possibly. A new study conducted by scientists from New York University Grossman School of Medicine have

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5:06

Could vanlife be a lifestyle choice for you?

Do you really know? ·

2025/06/30

he last two and a half years have caused a lot of us to reassess our priorities in life. Are we really living our lives to the full? Are there new experiences that we should be trying out? Within that context, an alternative nomadic lifestyle called vanlife has seen a resurgence. It’s been around since the 1960s, when hippies would travel across the United States in vans. But social media has made it trendy again, and in particular Instagram where the #vanlife hashtag has over 13 million posts

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4:34

Should I eat starchy foods in the evening?

Do you really know? ·

2025/06/29

After clocking out, who doesn’t crave a hearty meal after a hard day's work? But here’s the thing: your dinner choices could be tipping the scales.You’ve likely heard the old saying, “Eat breakfast like a king, lunch like a prince, and dinner like a pauper.” And yes, that pauper’s plate might skip the starches. Why? How so? So, can you cozy up with carbs at night? In under 3 minutes, we answer your questions! To listen to the last episodes, you can click here: ⁠Is the gut really our "second

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5:15

What is goblin mode?

Do you really know? ·

2025/06/29

All week long we're looking at the 10 words that will be on everyone's lips in 2023. Every year, linguists at Oxford University choose a Word of the Year and in 2022, they allowed the public to vote on the winner for the first time. The 340,000 English speakers who voted were given three choices: metaverse, the #IStandWith hashtag and, drumroll please, the eventual runaway winner…Goblin Mode. The term secured an impressive 93% of votes. It might seem anecdotal and light-hearted, but you’re going to

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4:59

What are the health impacts of taking public transport?

Do you really know? ·

2025/06/29

According to UK government data, a total of 6.5 billion passenger journeys were completed using public transport vehicles like buses, trains and tram systems, in the year to March 2023. Packed platforms, overcrowded carriages and uncertain schedules are just some of the issues public transport commuters have to deal with on a regular basis, not to mention the occasional strike. Being crammed into a tube, bus or train with other commuters can make you feel oppressed, fatigued or even suffocated

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5:31

How does doom spending stop us from saving money?

Do you really know? ·

2025/06/28

Members of Gen Z, when you were kids, you might well have had grand plans for your twenties – owning a house, landing a job, getting hitched, and having kids. But where are you now? Are you a keen saver eyeing up homeownership, perhaps abiding by some of the methods we've talked about in the past on Do You Really Know?, like loud budgeting, cash stuffing or the 50/30/20 method? Or do you feel powerless, like your generation got the short end of the stick when it comes to property, and there's

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5:29

Could the one-week method help you stop drinking?

Do you really know? ·

2025/06/28

Some psychological and addiction experts say that making and sticking to resolutions can do wonders for your health. And just because it’s not the New Year right now, that doesn’t mean you can’t start a resolution right away. After all, there’s no time like the present, right? Let's face it though, sticking to a resolution can be tough, especially when it comes to giving up something you’re used to doing, eating or drinking on a regular basis. Like alcohol for example. If you’re looking to cut back

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4:50

What are the secrets to a long lasting relationship?

Do you really know? ·

2025/06/28

According to the Daily Mail, the “seven year itch” in relationships is now a thing of the past. The average relationship length is just two years and nine months, according to a UK survey from 2014. Since the late 20th century, long-lasting relationships have tended to be the exception rather than the norm. It’s a trend that has fascinated researchers, with many carrying out studies in search of the secrets behind a lasting relationship. What can we learn from those studies then? What about

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3,282 results

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