Do you really know?
Episodes
Why is male fertility declining so drastically?
23 Mar 2026
Contributed by Lukas
For 30 years, male sperm counts have been declining all around the world, particularly in Western countries. It’s been demonstrated over and over ag...
Is intermittent fasting good for your health ?
22 Mar 2026
Contributed by Lukas
Intermittent fasting (IF) isn’t just a diet; it’s a pattern of eating. It’s not about what you eat, but when. The idea is simple: you cycle betw...
How can you spot a cloned website?
22 Mar 2026
Contributed by Lukas
We're all aware that scammers are getting more meticulous day by day. Iit used to be our grandparents who were the primary targets of their schemes, b...
What are some of the world's best treasure hunts?
22 Mar 2026
Contributed by Lukas
After over three decades of relentless searching, the Golden Owl was finally found on October 3, 2024. This €150,000 treasure was hidden back in 199...
How can I get my spring cleaning right this year?
21 Mar 2026
Contributed by Lukas
So long rain and dreary skies, hello buds and sunshine! Spring typically injects a fresh dose of energy into our lives, as the arrival of warmer days ...
How can you protect yourself from being mugged?
21 Mar 2026
Contributed by Lukas
Mugging is a form of robbery that involves violence or the threat of violence against a person in a public place. It’s also known as street robbery ...
How can I stay trendy buying only second hand clothes?
21 Mar 2026
Contributed by Lukas
November is synonymous with Black Friday, great deals but what cost? Over consumption is endangering our already fragile planet. Is it time to change ...
Are influencers over?
20 Mar 2026
Contributed by Lukas
Promo codes, sponsored hauls, paid partnerships… If it feels like your feed has turned into a nonstop ad break, you’re not imagining it. And plent...
Which foods are best for burning fat?
20 Mar 2026
Contributed by Lukas
It’s common knowledge that autumn often sees people put on weight. But if you’re looking to shed a few pounds, there are some foods you can rely o...
What is pandemic skip?
20 Mar 2026
Contributed by Lukas
The impact of the Covid-19 pandemic is still palpable, with repercussions stretching across various facets like the economy, education, and health. Th...
Are our phones really eavesdropping on us?
19 Mar 2026
Contributed by Lukas
Have you ever had the eerie feeling that you’re being spied on by your smartphone? You know: you're having dinner with a friend, chatting about how ...
Why do my eyelids twitch when I’m tired?
19 Mar 2026
Contributed by Lukas
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? ...
How does pollution affect my mental health?
19 Mar 2026
Contributed by Lukas
According to the government, air pollution is the “largest environmental risk to public health”, and accounts for between 28,000 and 36,000 deaths...
Why do we cry?
18 Mar 2026
Contributed by Lukas
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...
Is sleeping less than 6 hours a night the equivalent to being drunk?
18 Mar 2026
Contributed by Lukas
We've all been there - it's late, you're exhausted, but sleep just won't come. You toss and turn, check the clock every few minutes, and the longer yo...
What are warming stripes?
18 Mar 2026
Contributed by Lukas
If you’ve been to a climate demonstration in recent times, you may have noticed placards with a series of blue and red coloured stripes. Kind of lik...
Where does St Patrick's Day come from?
17 Mar 2026
Contributed by Lukas
If you’re a fan of sitcoms, no doubt you've seen episodes in which the characters were celebrating Saint Patrick's Day. It's a big deal in the UK an...
What is erectile dysfunction?
17 Mar 2026
Contributed by Lukas
As many as six in ten men have experienced erection problems over the course of their life. And that proportion has been on the rise in the last fifte...
Why are some kinds of fruit not considered vegan?
17 Mar 2026
Contributed by Lukas
Ever had that moment when you're relishing a juicy fig, and someone drops the bomb that you might be chowing down on a wasp? Surprising as it sounds, ...
What are the benefits of slow sex?
16 Mar 2026
Contributed by Lukas
We all know that having sex is a great form of stress relief. It releases pleasure hormones, like endorphins and oxytocin, also reinforcing the cardio...
[PODCASTHON] Why do inequalities begin in early childhood?
16 Mar 2026
Contributed by Lukas
Most of us would like to believe that the world can be a place of equal opportunities, where everyone has the same potential to shape their future, no...
Why are we so fascinated by true crime?
16 Mar 2026
Contributed by Lukas
The 21st century has seen true crime stories surge in popularity, dominating bookshelves and TV schedules. Documentaries like Making A Murderer and po...
How can I get cheaper flight tickets?
15 Mar 2026
Contributed by Lukas
According to recent data from personal finance website NimbleFins, the average British family of four spent around £4,678 for a 9-night holiday abroa...
How often should I shower?
15 Mar 2026
Contributed by Lukas
Whether it's for the sake of comfort or maintaining good hygiene, many of us opt for taking a shower on a daily basis. Studies have shown it's the mos...
What makes someone a cat person?
15 Mar 2026
Contributed by Lukas
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 iden...
Is living by the sea better for your health?
14 Mar 2026
Contributed by Lukas
I don’t know about you, but I find that there’s something about the seaside air which just always makes me relax and puts me in a better mood. As ...
Does our personality change when we speak in another language?
14 Mar 2026
Contributed by Lukas
When it comes to what proportion of people speak more than one language, estimates vary but the general consensus is that at least half of the world’...
What is the Green Belt?
14 Mar 2026
Contributed by Lukas
The Green Belt is a policy for controlling urban growth in the United Kingdom. It refers to a ring of countryside where urbanisation will be resisted ...
At what age do we really become adults?
13 Mar 2026
Contributed by Lukas
In France, adulthood starts at 18. In some countries, it’s 21. It all depends on the legal age of majority. But that line is mostly legal and scienc...
Why is sugar bad for our memory?
13 Mar 2026
Contributed by Lukas
We're well aware of its negative impact on our waistlines and heart health, but sugar also takes a toll on our brains. And it's not just found in the ...
Which foods can hurt your libido?
13 Mar 2026
Contributed by Lukas
You know how ginger and oysters are said to rev up your sex drive? We’ve talked about aphrodisiacs in the past on Do You Really Know but today we’...
Can women really get a core-gasm from exercise?
12 Mar 2026
Contributed by Lukas
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. N...
Does sex help us to sleep better?
12 Mar 2026
Contributed by Lukas
According to Mental Health UK, nearly one in five people in the country don’t get enough sleep. We’ve talked about various types of sleep disorder...
Could loud budgeting help you save money ?
12 Mar 2026
Contributed by Lukas
At some point, we've all probably come up with some flimsy excuses to avoid a night out, a fancy restaurant dinner, or hanging out with friends. Somet...
What is Tanaland, the Imaginary Country Battling Misogyny?
11 Mar 2026
Contributed by Lukas
Imagine a virtual country where women come together to push back against misogyny and celebrate female empowerment. Born on French TikTok, Tanaland ha...
Could CBTI help you sleep better ?
11 Mar 2026
Contributed by Lukas
According to the NHS, around 1 in 3 people in the UK are affected by insomnia, and it’s particularly common in older adults. Many people turn to med...
What is a kakistocracy, in the world of work ?
11 Mar 2026
Contributed by Lukas
We spend a good deal of our time at work, 35 hours a week or more. It's an integral part of our lives, so if you can it's always best to surround your...
What's the best way to cut your toenails?
10 Mar 2026
Contributed by Lukas
Caring for yourself involves more than just tending to your nails; it's about making sure they're well-groomed, especially those on your toes. Trimmin...
What is xylazine, the so-called zombie drug?
10 Mar 2026
Contributed by Lukas
In July 2023, the White House recognised that the United States was facing a “grave threat” in the form of a highly addictive drug called xylazine...
Why don't prices fall when inflation slows?
10 Mar 2026
Contributed by Lukas
Inflation peaked in 2022, but now it’s on a slow and steady decline, reaching 2.5% in June 2024, down from 5.5% in June 2023. Plus, some commercial ...
Why is the poetcore aesthetic trend taking off on social media?
09 Mar 2026
Contributed by Lukas
If you’ve seen more and more people out wearing roll-neck jumpers, vintage blazers or cross-body bags, you could be forgiven for wondering if you’...
Are electric toothbrushes really more effective?
09 Mar 2026
Contributed by Lukas
Electric toothbrushes come with a head that makes small circular movements automatically. Studies have shown that, for the same amount of brushing tim...
Why do we see faces in inanimate objects?
09 Mar 2026
Contributed by Lukas
Have you ever looked at a piece of toast, a cloud or a nearby house and had the impression there’s a face in it, looking right back at you? If you’...
Why has purple become the colour of feminism?
08 Mar 2026
Contributed by Lukas
During this year's International Women’s Day celebrations, you’re likely to see demonstrators in many cities around the world bearing purple flags...
How is micro-feminism helping women combat workplace sexism?
08 Mar 2026
Contributed by Lukas
To all our female listeners: have you ever been a victim of misogyny in the workplace? Sadly, the chances are you have, given that a 2022 survey by re...
How does eldest daughter syndrome affect some women?
08 Mar 2026
Contributed by Lukas
Female listeners; if you're the oldest of multiple siblings, you probably know the drill. Being the big sister often means being thrust into a parenta...
How to spot a heart attack if you are a woman?
07 Mar 2026
Contributed by Lukas
heart attack can be deadly but thankfully there are life saving treatments out there. However, research from the British Heart foundation has found t...
How does the "Scully Effect" raise young women's interest in science fields?
07 Mar 2026
Contributed by Lukas
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...
Do parents really not have a favorite child?
06 Mar 2026
Contributed by Lukas
In many families, some children grow up with the uncomfortable feeling of being less loved than others, or worse, sensing that their parents have a “...
How is grounding helping women to have more orgasms?
06 Mar 2026
Contributed by Lukas
According to a study published in Current Psychiatry Reports in 2000, 10% - 15% of women are affected by anorgasmia, the inability to reach orgasm. O...
Are men still being paid more than women?
06 Mar 2026
Contributed by Lukas
According to data from the BBC men still earn more than women for the same work. The difference in wages (for the medium worker) is 9.4%, the same as ...
What are the best techniques for giving oral sex to a woman?
05 Mar 2026
Contributed by Lukas
Society tends to make sex all about penetration, but it really doesn’t have to be that way. Giving your partner oral sex can be an invigorating expe...
What has the impact of femvertising been on marketing?
05 Mar 2026
Contributed by Lukas
The term femvertising was coined by She Knows Media back in 2014, and recent years have seen more and more advertising campaigns champion female empow...
What is femicide?
05 Mar 2026
Contributed by Lukas
What is femicide? Thanks for asking! Many countries reported increased gender-based violence during recent coronavirus lockdowns. Femicides are the ...
How did female body hair become taboo?
04 Mar 2026
Contributed by Lukas
According to Healthline.com, the human body has around 5 million hair follicles. Now you might not have guessed, but that figure is around the same fo...
Why are more and more women taking testosterone?
04 Mar 2026
Contributed by Lukas
Over the course of a woman’s life, their hormone levels change in ways that can have a real impact on mood and daily routine. For example, it’s pr...
What is female viagra?
04 Mar 2026
Contributed by Lukas
It’s been over two decades now since viagra was first approved for use in 1998, the little blue pill from Pfizer becoming the first oral treatment f...
Why do people get angry when they drive?
03 Mar 2026
Contributed by Lukas
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 ...
What is Pancake Day?
03 Mar 2026
Contributed by Lukas
Feeling hungry? It’s march 3rd, Pancake Day ! Which means you have to choose your favourite toppings! Pancake Day is also known as Shrove Tuesday, w...
What is the female gaze?
03 Mar 2026
Contributed by Lukas
To celebrate International Women's Day, which falls on March 8th, Bababam is replaying Do You Really Know episodes which look at the struggle agains...
Can you train your brain like a muscle?
02 Mar 2026
Contributed by Lukas
The human brain isn’t actually a muscle, as a lot of people think. But nevertheless we still need to give it exercise to keep it healthy. While y...
How can you recognise a cult?
02 Mar 2026
Contributed by Lukas
In 2024, a French government watchdog estimated that around 500,000 people were involved in cult-like groups, with tens of thousands of children growi...
What does a full moon do to our bodies?
02 Mar 2026
Contributed by Lukas
You may not have realised, but tomorrow sees the first full moon of 2024, and there are actually a whole host of popular beliefs associated with this ...
What is productivity paranoia?
28 Feb 2026
Contributed by Lukas
Covid-19 restrictions changed work practices radically; a large proportion of the workforce have worked remotely for nearly three years now. That’...
What is Bregret?
28 Feb 2026
Contributed by Lukas
It’s been just over three years since Brexit came into effect and the latest YouGov poll from late February 2023 suggests that 53% of Brits now thin...
How does FOFO lead to late medical diagnoses?
27 Feb 2026
Contributed by Lukas
Have you ever felt anxious about going to see the doctor? Maybe the thought of a needle or having a tooth pulled makes you tense. Well that's pretty c...
What’s the point of flight mode?
27 Feb 2026
Contributed by Lukas
Those are no doubt familiar instructions if you’ve ever taken a plane. Today's topic is one that has been a part of our digital lives for quite some...
Is putting on less heating a way to save money and be healthier?
27 Feb 2026
Contributed by Lukas
The average British household usually puts on their central heating by October 24, according to British Gas. But this year, thanks to soaring energy c...
Are budget food brands really worth the savings they offer?
26 Feb 2026
Contributed by Lukas
In September 2023, UK consumer watchdog Which published research showing just how much cheaper budget brands can be. One striking example was the pric...
How does the Matthew Effect help us understand class inequalities?
26 Feb 2026
Contributed by Lukas
“The rich get richer and the poor get poorer”, the saying goes. And there’s actually a name for that phenomenon: the Matthew Effect. The term wa...
Why do prices always end in .99?
25 Feb 2026
Contributed by Lukas
£2.99 for biscuits, £6.99 for moisturiser, £49.99 for a mixer. In shops, one small detail stands out: price tags overwhelmingly end in 99. It’s...
What is the third state of existence between life and death?
25 Feb 2026
Contributed by Lukas
In some religions, people believe in reincarnation or an afterlife, but in medicine, life is generally considered to end when the heart stops beating....
What is a vertiport?
24 Feb 2026
Contributed by Lukas
All week long, we’re looking into 10 new terms and concepts that are certain to be on everyone’s lips in 2023! Flying vehicles have long been imag...
What is Calimero syndrome?
24 Feb 2026
Contributed by Lukas
Calimero is a black chick with a half-broken eggshell on his head. He’s always complaining about something or other, with “But it’s an injustice...
Is depression hereditary?
23 Feb 2026
Contributed by Lukas
Data suggests that around one in six of us will experience depression at some point in our lifetime. And if you’ve had family members who have been ...
What is second child syndrome, the feeling affecting Prince Harry?
23 Feb 2026
Contributed by Lukas
In January 2023, Prince Harry published his memoirs, in the form of an autobiography entitled "Spare". The book led to a lot of controversy, particula...
Can deep sleep help stop dementia?
22 Feb 2026
Contributed by Lukas
It’s not news that if you don't get a good nights sleep you will probably not be your best the next day, but while you are snoozing, particularly in...
How do I know if I'm allergic to gluten?
22 Feb 2026
Contributed by Lukas
In recent years, gluten-free diets have become more and more popular. No doubt you’ve seen “Free From” aisles in your local supermarket, and you...
What is online grooming?
21 Feb 2026
Contributed by Lukas
The UK’s Online Safety Bill has been in the pipeline for a number of years now, and is currently being considered by the House of Lords. The propose...
Why do we get pins and needles?
21 Feb 2026
Contributed by Lukas
We all know what it feels like to get pins and needles. It usually happens when we’ve been in the same position for too long, sleeping on one of our...
Is it possible to not love your parents?
20 Feb 2026
Contributed by Lukas
It’s more common than we tend to admit. Some children grow up with parents who are critical, emotionally distant, or unable to empathize. In that ki...
Why are celebrities dissolving their facial fillers?
19 Feb 2026
Contributed by Lukas
You’ve probably seen the photos of stars like Courteney Cox or Simon Cowell, who have recently revealed a more natural look after removing their fa...
Why do we get memory lapses?
18 Feb 2026
Contributed by Lukas
According to research published in The BMJ in 2002, around 40% of people experience some age-associated memory impairment after reaching 65. Thankfull...
Why should I avoid showering after a workout?
18 Feb 2026
Contributed by Lukas
Because moving and doing regular physical activity is important for our physical and mental health! Listen again to our episodes about sport! After a...
What does eating junk food do to our brains?
18 Feb 2026
Contributed by Lukas
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 ea...
What is the Fermi paradox?
17 Feb 2026
Contributed by Lukas
Have you ever felt tiny when contemplating the vast, 14-billion-year-old universe? Maybe you’ve wondered, “Is there another form of intelligence o...
How can my partner and I get better sleep together?
17 Feb 2026
Contributed by Lukas
If your partner is constantly snoring, hogging the blanket, or tossing and turning every five minutes, and you're finding it increasingly challenging ...
Do we really need to eat more during winter?
17 Feb 2026
Contributed by Lukas
Whether it's a reflex, a craving, or a belief in its necessity, people often find themselves snacking more in winter, or opting for heartier meals tha...
How can you beat bad breath?
16 Feb 2026
Contributed by Lukas
“Good manners and bad breath get you nowhere”, sang Elvis Costello in his 1981 hit New Lace Sleeves. And it’s true that halitosis, the scientifi...
What is Wernicke-Korsakoff Syndrome?
16 Feb 2026
Contributed by Lukas
According to the World Health Organisation, harmful use of alcohol accounts for 3 million deaths each year. Indeed, it’s the third leading cause of ...
What is kinkeeping, the invisible workload often done by women?
16 Feb 2026
Contributed by Lukas
You might not be familiar with the term ‘kinkeeping’, but the chances are you’ve benefited from it at some point in your life, in particular as ...
What impact does your first love have on the rest of your life?
14 Feb 2026
Contributed by Lukas
Most of us never really forget the person who first made our heart race or that awkward, wonderful, or maybe disappointing teenage kiss. Whether it ...
What's the best way to argue with friends and family?
13 Feb 2026
Contributed by Lukas
Whether it starts over a sock left on the floor or a political debate that erupts a little too early at the holiday table, conflict is part of life. I...
What is the Romeo and Juliet effect?
12 Feb 2026
Contributed by Lukas
When someone tells you not to do something it often becomes even more tempting, which is why, as a teenager, when your parents forbade you from seeing...
What’s the Tinder Paradox ?
12 Feb 2026
Contributed by Lukas
It’s a quiet Sunday evening, and you’re scrolling through Tinder, swiping left and right. Unlike the endless upward scroll of social networks, Tin...
What are energy vampires?
11 Feb 2026
Contributed by Lukas
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 f...
Is there really such a thing as love at first sight?
11 Feb 2026
Contributed by Lukas
Have you ever fallen head over heels for someone as soon as you met them? It certainly doesn’t happen to us on a regular basis, but it’s pretty co...
What does speed watching do to our brains?
09 Feb 2026
Contributed by Lukas
More and more of us are consuming digital content at increased speed. Whether it’s on social media, watching a Netflix series or listening to a podc...
What household products should I avoid?
08 Feb 2026
Contributed by Lukas
Cleaning can feel satisfying, but did you know many household products might actually harm your health? A 2021 Which? study revealed that nearly half ...
Do opposites really attract?
07 Feb 2026
Contributed by Lukas
“Birds of a feather flock together”, the old saying goes. But does that apply when it comes to romantic relationships? After all, we also say that...