Do you really know?

What are primitive reflexes?

24 Nov 2025

Contributed by Lukas

According to the UK Office for National Statistics, September 26 was the most popular day to be born over the last two decades, which falls 39 weeks a...

What is the carnivore diet?

24 Nov 2025

Contributed by Lukas

We’ve all heard about the importance of getting a balanced diet, but some people choose to ignore that advice completely, and those following the ca...

Why am I experiencing deja vu?

24 Nov 2025

Contributed by Lukas

The strange experience of deja vu sometimes lasts just a matter of milliseconds. Nonetheless it can still catch you off guard and be pretty unsettling...

How to exercise safely when the weather is cold?

23 Nov 2025

Contributed by Lukas

Many people tend to exercise less during the colder months, preferring to stay indoors and avoid the chilly weather. But doing exercise in winter is a...

Why do some people get a headache during sex?

23 Nov 2025

Contributed by Lukas

Sex is generally synonymous with pleasure, but sometimes it can bring on headaches that are unpleasant at best. They’re known as sex headaches or or...

What is the 12 week method for achieving your goals?

23 Nov 2025

Contributed by Lukas

Every January, many of us set ambitious resolutions for the year ahead. We jot down our aspirations, fueled by goodwill, and promise ourselves that th...

Why will we be using liquefied natural gas to heat our homes this winter?

22 Nov 2025

Contributed by Lukas

Talk of energy has been storming the headlines recently. A long, cold winter is approaching and prices are soaring, due to the ongoing Russia-Ukraine ...

Are men really more sensitive to pain than women?

22 Nov 2025

Contributed by Lukas

When it comes to health, it’s clear that gender differences play a significant role. It's now recognized that the occurrence of diseases, their onse...

How can I improve my sporting performance through mental preparation?

22 Nov 2025

Contributed by Lukas

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...

Is it still possible for young people in the UK to become homeowners?

21 Nov 2025

Contributed by Lukas

In the UK, owning a home is still seen as a key sign of financial stability. For many, it means security against life’s uncertainties - job loss, il...

How can I know if my partner is micro-cheating on me?

21 Nov 2025

Contributed by Lukas

When it comes to what counts as being unfaithful in a relationship, everyone has their own definition. Some might say that only physical contact with ...

How do I know if I sleepwalk?

21 Nov 2025

Contributed by Lukas

Sleepwalking is a disorder that comes on during the deep sleep phase, from one to three hours after falling asleep. Episodes can last from 5 to 30 min...

Why do we put on weight when in a relationship?

20 Nov 2025

Contributed by Lukas

The subject of today’s episode is something that’s happened to many of us. You meet someone special, start spending a lot of time together and gra...

How do I know when to end a friendship?

20 Nov 2025

Contributed by Lukas

Friendship is often said to be eternal, to withstand the test of time and distance. We expect friends to accept everything about us, but it's not alwa...

How can I have a healthier relationship with my smartphone?

20 Nov 2025

Contributed by Lukas

For a number of years now, our smartphones have played a central role in many aspects of our lives, from work to personal relationships to entertainme...

What does loneliness do to our brains?

19 Nov 2025

Contributed by Lukas

Not everyone has the same relationship with social contact. Introverts, for example, recharge by spending time alone. Meanwhile extroverts get their e...

Why do I get vertigo?

19 Nov 2025

Contributed by Lukas

You’re standing or sitting perfectly still, but yet you feel like everything is spinning around you, as if you were on a theme park ride. You’ve b...

How can the AAA method help you in tricky work situations?

19 Nov 2025

Contributed by Lukas

Making a slip-up at work might not seem like a big deal most of the time, but on occasion it can lead to disappointment and frustration. And no matter...

Are Skyr yoghurts really good for you?

18 Nov 2025

Contributed by Lukas

If you've ever strolled down the dairy aisle of your local grocery store, chances are you've come across these little tubs of Icelandic goodness. Skyr...

Why do some men get ill after they orgasm?

18 Nov 2025

Contributed by Lukas

As much as society might tell us the opposite, sex isn't actually always about pleasure. And that's especially true for men affected by the condition ...

How can I best preserve food in my freezer?

18 Nov 2025

Contributed by Lukas

With the warmer weather that summer brings, it’s especially important to be aware of the best techniques for freezing food before it goes bad. This ...

What is a tumour?

17 Nov 2025

Contributed by Lukas

What is a tumour? The word tumour comes directly from the Latin word for “swelling”. A tumour appears when a group of cells multiply and form a ...

Are blue eyes really more sensitive to light?

17 Nov 2025

Contributed by Lukas

The idea that light-colored eyes are generally more fragile is pretty widespread. They’re less resistant to sunlight and require more protection. Ac...

How can I protect myself from winter viruses?

17 Nov 2025

Contributed by Lukas

During winter, we tend to huddle indoors in an understandable bid to stay warm. But while this makes for a cosy setting, it also becomes a major breed...

Can I prevent hair loss?

16 Nov 2025

Contributed by Lukas

According to UK charity The Men’s Health Forum, two thirds of all men are affected by male pattern baldness in their lifetime. That won’t be a su...

Why does the cold make us need to pee?

16 Nov 2025

Contributed by Lukas

We've all experienced it: the sudden urge to pee when it's cold is a common thing. This connection was supposedly discovered by Austrian physician Alf...

How can you save money on your food bill?

16 Nov 2025

Contributed by Lukas

The cost of living crisis has seen food prices increase by as much as 65% according to the Office for National Statistics meaning that the average Bri...

Which foods will help you get a good night's sleep?

15 Nov 2025

Contributed by Lukas

Here at Do You Really Know, we’ve talked over and over again about the importance of getting good quality sleep. So of course, you don’t want your...

What is a caffè sospeso?

15 Nov 2025

Contributed by Lukas

Caffè sospeso literally translates to English as a ‘suspended coffee’. It’s an Italian tradition whereby cafe customers pay for an extra coffee...

Why do we get goosebumps?

15 Nov 2025

Contributed by Lukas

The term goose bumps appeared way back in the 17th century, and describes the well-known phenomenon which shows up when we’re cold, scared or simply...

Should vapes have the same restrictions as cigarettes?

14 Nov 2025

Contributed by Lukas

In the UK you can only buy vapes or e-cigarettes if you are over 18, but the bright packaging, fruit flavors and affordable prices attracts teenagers ...

Gaza: how do we recognize genocide?

14 Nov 2025

Contributed by Lukas

Since October 7, 2023, Israel has waged an unprecedented offensive on Gaza. What began as retaliation against Hamas attacks has escalated into relentl...

Can you get food poisoning from raw fish?

14 Nov 2025

Contributed by Lukas

Eating raw fish like sushi and sashimi has never been more popular, whether that’s in restaurants or on supermarket shelves. The good news is that s...

Why do we need to get bored more often?

13 Nov 2025

Contributed by Lukas

In this day and age, we barely have time to be bored, what with the endless stream of notifications coming from our smartphones, music, TV shows, game...

Is sleeping naked good for you?

13 Nov 2025

Contributed by Lukas

According to a YouGov study from 2022, 20% of Brits sleep naked. Men are actually more likely to do so than women, with a rate of 25% compared to 15%....

How can I reduce damp and mould in your home?

13 Nov 2025

Contributed by Lukas

According to Dr Yasemin Didem Aktas, deputy academic director of the UK Centre for Moisture in Buildings (UKCMB), “Mould is everywhere, all the time...

What does my urine colour say about my health?

13 Nov 2025

Contributed by Lukas

Over the course of our lifetime, we around 34,000 litres of urine, according to Business Insider. Urine evacuates the nitrogen-containing waste prod...

Is nostalgia good or bad for us?

12 Nov 2025

Contributed by Lukas

Have you ever noticed how revisiting films from your childhood, listening to old tunes, or flipping through cherished books can bring on a certain sen...

What happens to our bodies when we die?

12 Nov 2025

Contributed by Lukas

In 2016, researchers in Vancouver, Canada observed an unprecedented phenomenon: an 87-year-old patient died while undergoing an MRI scan. It was the...

What is sad nipple syndrome?

12 Nov 2025

Contributed by Lukas

The nipples are an erogenous zone for many people. But as it turns out, having them touched can bring on a whole other kind of feeling for others. The...

What is coffee badging in the workplace?

11 Nov 2025

Contributed by Lukas

It doesn’t take a genius to realise that the COVID-19 pandemic changed the relationship many white-collar employees have with work. And that’s par...

What is intuitive eating?

11 Nov 2025

Contributed by Lukas

An IPSOS study from late 2020 found that 45% of people across the world were trying to lose weight at the time. In many cases, losing weight is benefi...

What is house hushing?

11 Nov 2025

Contributed by Lukas

House hushing is a decluttering method that aims to create peaceful spaces in your home by reducing visual noise. Visual noise refers to anything exce...

How can I use the 80/20 method to save money?

10 Nov 2025

Contributed by Lukas

If you’re like many people, you probably want to save more money but hate the idea of budgeting. Maybe you don’t like tracking every single expens...

What causes lactose intolerance?

10 Nov 2025

Contributed by Lukas

It's becoming a more common topic of discussion. According to BUPA.co.uk, “around one in every 10 older children and adults are thought to have lact...

What is Ulysses Syndrome?

10 Nov 2025

Contributed by Lukas

You may remember hearing about ancient Greek hero Ulysses in school lessons. He’s the central character in Homer’s Odyssey. As legend goes, after ...

How can I beat my work addiction ?

09 Nov 2025

Contributed by Lukas

Being a grafter or hustler is often portrayed in a positive light when it comes to the world of work. But there are a host of negative consequences th...

How can I stop snacking?

09 Nov 2025

Contributed by Lukas

Snacking is a bad habit that can have a significant impact on your weight and health in the long term. It can be tricky to beat, so here are our top t...

How can I free myself from negative thoughts?

09 Nov 2025

Contributed by Lukas

According to American neuroscientist Daniel Amen, a specialist in brain imaging, we produce 60,000 thoughts per day, and a staggering 80% of these tho...

Should I start my Christmas shopping in autumn?

08 Nov 2025

Contributed by Lukas

You've probably noticed that as soon as the back-to-school season ends, stores start filling their shelves with chocolates, garlands, and Advent calen...

How can I stop smoking?

08 Nov 2025

Contributed by Lukas

We all know that the effects of tobacco on the human body are devastating. The World Health Organisation says that it kills more than 8 million people...

Why are most people right-handed?

08 Nov 2025

Contributed by Lukas

Around the age of 4, children develop a preference for using one of their hands to complete certain tasks, like drawing for example. The same goes for...

Is it really possible to disappear from the internet?

07 Nov 2025

Contributed by Lukas

The internet knows everything about us. Even when we think we’re discreet, traces remain, bank accounts, emails, administrative forms, social media ...

Does cold weather really make us sick?

07 Nov 2025

Contributed by Lukas

"Wrap up warm, or you'll catch a cold!" No doubt you heard that advice a lot as a child, and you may well still hear it as an adult. For a long time, ...

Why is black associated with grief?

07 Nov 2025

Contributed by Lukas

A funeral is one of those rare occasions where you don’t really need to think too much about your choice of outfit. After all, everyone wears black ...

What is an endemic?

06 Nov 2025

Contributed by Lukas

An infection becomes endemic in a population when it is constantly maintained at a baseline level. That happens when the circulation of the virus is t...

Does true crime help us fall asleep?

06 Nov 2025

Contributed by Lukas

For some, true-crime stories have a strangely calming effect when they are tucked up in bed for the night. It’s a phenomenon that’s not gone unnot...

Could Turmeric help indigestion?

06 Nov 2025

Contributed by Lukas

Turmeric is a plant that belongs to the ginger family. It has a bright yellow-orange color, and a bitter and peppery taste. The main active ingredient...

What happens to your online life after you die?

05 Nov 2025

Contributed by Lukas

When you die, your physical body may be gone, but your digital legacy lives on. Your digital legacy is everything you leave behind online, such as you...

Why are Gen Z “revenge quitting” their jobs?

05 Nov 2025

Contributed by Lukas

Have you ever been so fed up at work that you wanted to not only quit your job, but also make a statement while doing so? Well, that’s a workplace ...

Am I in a situationship?

05 Nov 2025

Contributed by Lukas

Sometimes there’s a very thin line between friendship and love. You spend time with someone, you’ve got things in common, you make each other laug...

What is chromophobia?

04 Nov 2025

Contributed by Lukas

Chromophobia is a term with Greek origins, referring to the fear of colours. Initially, it was a concept used in biology to describe cells unresponsiv...

Why do you get a stitch in your side?

04 Nov 2025

Contributed by Lukas

You know the feeling: you’re running, cycling, or doing some other physical activity, and suddenly you feel a sharp pain in your side, just below yo...

Are you a time optimist?

04 Nov 2025

Contributed by Lukas

A time optimist is someone who is overly optimistic about how much time they have to do something, and therefore often ends up being late or missing d...

Why does cooking benefit our mental health?

03 Nov 2025

Contributed by Lukas

Cooking is a passion and hobby for a lot of people. They scour Pinterest for hours to pick the best recipe, dice their ingredients finely, let the foo...

What is a “performative man,” this trend that has taken over TikTok?

03 Nov 2025

Contributed by Lukas

A matcha in hand… a tote bag slung over the shoulder… black nail polish neatly applied… a carefully styled mullet… and a copy of Sally Rooney ...

What are the health benefits of walking up stairs?

03 Nov 2025

Contributed by Lukas

Have you ever heard ot the stairs test? Experts say it’s an excellent gauge of a person’s overall health. The idea is to run up as many flights of...

What should I do with expired medicines?

03 Nov 2025

Contributed by Lukas

How many times have you come across expired pills in your medicine cabinet and wondered  whether they we still safe to use? It’s pretty common, and...

Is microwaving food bad for you?

02 Nov 2025

Contributed by Lukas

It’s been labelled a “marvel of engineering” and a “miracle of convenience” by Harvard Health Publishing. Data published by Statista in July...

Could you be micro-flirting without realising it ?

02 Nov 2025

Contributed by Lukas

There are plenty of ways to get the attention of someone you're crushing on. It might come very naturally to some, but for others, flirting can be an ...

What is quiet hiring?

02 Nov 2025

Contributed by Lukas

After the emergence of ‘quiet quitting’, it's now the turn of quiet hiring. And although the term is relatively new, the practice is not. The ter...

Is intermittent fasting really effective?

01 Nov 2025

Contributed by Lukas

Intermittent fasting has been making waves, especially on social media, where it's often hailed as a miracle fix for weight loss. While it's no silver...

Is shaving too often bad for you?

01 Nov 2025

Contributed by Lukas

There’s a lot of popular ideas out there about body hair removal. Shave too much and the hair becomes thicker. Wax, and it will gradually start thin...

Is using cotton buds bad for your ears?

01 Nov 2025

Contributed by Lukas

Polish-American man Leo Gerstenzang is credited with inventing the humble cotton bud in the 1920s, an item which has since gone on to be used for many...

Why are we afraid of the dark?

31 Oct 2025

Contributed by Lukas

Fear of the dark is very common for children and usually starts between the ages of 5 and 10. At this age, children become more aware of the dangers a...

What are some of the most common phobias?

31 Oct 2025

Contributed by Lukas

We’ve all got fears. For some, it’s the dark, for others, it’s spiders, heights, or maybe even something as ordinary as a phone call. But when t...

Why do we celebrate Halloween?

31 Oct 2025

Contributed by Lukas

Halloween is here and if you’re anything like us, you’ll be frantically doing some last-minute pumpkin carving or stocking up on sweets for trick-...

Why do we experience the unsettling "Uncanny Valley" effect?

30 Oct 2025

Contributed by Lukas

In November 2023, a spooky makeup trend took TikTok by storm. Users posted images of themselves with full-coverage, pale foundation for a ghostly vibe...

Why do we enjoy being scared?

30 Oct 2025

Contributed by Lukas

Ghost stories told around a camp fire, visiting a haunted house or watching a scary film are all common Halloween activities. We clearly enjoy scaring...

Why do I get an electric shock when I kiss someone?

30 Oct 2025

Contributed by Lukas

It's not uncommon for sparks to fly in unexpected ways during intimate moments; sometimes literally! You’ve most likely gone in to kiss someone only...

Could the AI bubble burst sooner than expected?

29 Oct 2025

Contributed by Lukas

In economic terms, a speculative bubble refers to a situation in which the price of an asset becomes heavily overvalued. An asset could be anything fr...

How can you protect yourself from being mugged?

29 Oct 2025

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 ...

What causes tocophobia, the fear of pregnancy and childbirth?

29 Oct 2025

Contributed by Lukas

According to the NHS, approximately 1,600 babies are born every day in the United Kingdom. But what often goes unspoken are the nine months leading up...

Why do our fingers wrinkle in water?

28 Oct 2025

Contributed by Lukas

We've all experienced that strange sensation of stepping out of the bath or swimming pool, and noticing grooves which have formed on the tips of our f...

Could moon breathing help you sleep better?

28 Oct 2025

Contributed by Lukas

In this day and age, it’s common to feel stressed every day, even right through to the evening. Have you ever struggled to lower your stress levels ...

What are the dangers with being overly perfectionist?

28 Oct 2025

Contributed by Lukas

Perfectionism is the tendency to set excessively high and unrealistic standards for oneself and others, and to evaluate one’s worth based on the abi...

Who are the Red Hot Chili Peppers?

27 Oct 2025

Contributed by Lukas

Who are the Red Hot Chili Peppers? With their new album Unlimited Love having been released on 1st April, let’s talk about the famous Californian...

What are the latest advances in lung cancer treatment?

27 Oct 2025

Contributed by Lukas

What are the latest advances in lung cancer treatment? In April 2022, findings from the large scale CheckMate 816 clinical trial were presented to t...

How can I beat Monday morning syndrome?

27 Oct 2025

Contributed by Lukas

As the sun sets on this rainy Sunday evening, reality sinks in. You didn't quite muster the energy to venture out, and now it's back to the grindstone...

What is the Ikea effect?

26 Oct 2025

Contributed by Lukas

You’re no doubt familiar with IKEA as the king of flatpack furniture. But you may not be aware that the Swedish company’s name is also associated ...

Can chocolate really kill dogs?

26 Oct 2025

Contributed by Lukas

Have you ever been terrified of finding your dog munching on an Easter egg or chocolate treat during the holidays? It’s the kind of thing that can t...

What is female viagra?

26 Oct 2025

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...

Is it good to have aches and pains after doing sport?

25 Oct 2025

Contributed by Lukas

Muscle pain generally occurs after an intense sports session. "They are due either to unusual muscular work, or to an increase in the intensity of a w...

Is there any truth that lemon water is good for you ?

25 Oct 2025

Contributed by Lukas

Lemon water is a popular drink that many celebrities and wellness gurus swear by. But is it really as good as they claim? Or is it just another fad th...

Can plants communicate with one another?

25 Oct 2025

Contributed by Lukas

You might think that plants are silent and passive, but recent studies have shown that they can actually make sounds and send signals to each other, e...

What is AI inbreeding?

24 Oct 2025

Contributed by Lukas

Seventy-four percent of 18 to 24-year-olds use AI every day, according to a February 2025 Ipsos  study. No surprising really, chatbots now handle so ...

Why do mouth sounds drive some people crazy?

24 Oct 2025

Contributed by Lukas

Let’s face it there are certain sounds that are just annoying to be exposed to, or sometimes even to think of! Someone chewing loudly with their mou...

Why do we kiss under the mistletoe?

24 Oct 2025

Contributed by Lukas

Mistletoe is a small evergreen parasitic plant that grows in clusters on trees. It has white berries and it has been used for centuries as a symbol of...

Why are young people looking so old?

23 Oct 2025

Contributed by Lukas

If you're aged between 30 and 40, you're part of Generation Y, also known as the ‘millennials’ You may have already said to yourself that the next...

What is the psychology behind the bystander effect?

23 Oct 2025

Contributed by Lukas

You’ve probably already walked by a stranger spreadeagled on the ground. Chances are that if you saw several people already offering assistance, you...