Show Me the Science with Luke O’Neill

This week Luke investigates The Science Of Hugs.

Why do we hug? What does it do to our hormones? And what affect does a hug have on your immune system?

So come on in, with open arms and enjoy The Science Of Hugs...

This week Luke looks at the societal impact of Ozempic.

In recent times the diabetes medicine has come into the public eye.

How will Ozempic impact food company's and save airlines money? Also, what are the serious side effects?

Join Luke as he dives into The Science Of Ozempic...

It's one for the future, but this week Luke looks at The Science Of Designer Babies.

With new research & advancements in technologies, it looks like gene correction could be just around the corner.

From ethics, to side effects we'll explore it all in this weeks episode.

Following a request Deirdre & Michael, this week Luke is diving deep into the ear canal & looking at the Science of Tinnitus .

From infections, to medication and over exposure to noise, we'll find out about the reasons why tinnitus can affect us.

And more importantly how can we try avoid it.

So listen up... as Luke explains the Science of Tinnitus.

A good laugh and a long sleep are the best cures in the doctors book...

Following the release of a new study about blood pressure and sleep, Luke decided to cuddle up and dive into the the science of sleep.

So tuck yourself in and lets hope Luke doesn't put you asleep!

This week Luke digs through our shopping baskets and looks at the science of ultra processed food.

From heart disease, to bad gut health. Today we find out why its important to have a good balanced diet.

Grab the popcorn (or carrot sticks) and lets dive in!

This week it's over to you, particularly Sinead Burke, who contacted Luke and wanted to know:

Why do Women get more autoimmune diseased than men?

From MS, to Lupus and everything in between. Woman are 4 times as likely than men to get autoimmune diseased, but Why?

Luke explains in this weeks episode...

Following a recent trip to a Immunology Conference in Beijing, Luke thought it would be the right time to to explore the origin of the Covid 19 virus.

We dive straight in, looking at everything from the Wuhan market, to regulations and how scientists are working to protect us in the future...

The days may be getting shorter & the sun lower in the sky, however it's still important to get that vitamin D.

This week Luke looks at The Science of Sunlight. Lets shine a light on sunlight and see how to helps our health improve.

Now get out go for a walk in the sun... Just don't forget your sunblock!

With the changing of the seasons, Luke thought it was the prefect time to visit the science of snot.

From the innate immune system, to defending our body's. Lets dive into the biochemistry of nasal mucus.

Just make sure you're not eating your breakfast!

With the return of Oasis and their world famous sibling rivalry, Luke thought it was time to visit the science of siblings.

Lets not look back in anger... instead we'll dive into the the arguments of family members.

Rivalry is normal, but how can bullying & arguing affect siblings in later life.

Little by Little, enjoy the science of siblings...

The world's oldest person recently passed (as did Ireland's coincidentally) so in this week's episode, Luke takes a look at the science behind longevity.

The research behind staying alive longer is being backed by some of the world's wealthiest tech giants such as Jeff Bezos who's goal is to investigate the possibility of 'reverse aging'. What role do the unique chracteristics of the naked naked mole rat play and the very real life lengthening properties of staying active.

He looks at the incredible effects of a healthy diet as well as the part your genes have to play.

So if you want to hit the century to get The Centenarian Bounty from the President make sure to listen very carefully!

With the release of the latest installment of the Aliens franchise (Alien:Romulus), Luke thought it timely to revisit the scientific possibility of the existence of extra terrestrial life.

He tells an intriguing tale of NASA's efforts to make contact going back to the launch of Voyager in the 70s and what artefacts that might pique the interest og a nosy alien. He also reveals the recent revelations regarding the possibility of life on Mars.

Take your protein pills, put your helmet on and enjoy!

Responding to a request from a listener, this week's episode has Luke explaining the science of hypnosis. What is it and how does it work?

Luke also examines the benefitial use of hypnosis to treat mental health, in pain relief and helping with nausea as well as its suspected use by Satan to control earth's population by way of heavy metal.

You have been warned!

Did you know there are two astronauts stuck on the International Space Station? Well Luke didn't so that prompted him to take a look into the history and space engineering that went into the construction of one of the biggest machines ever built by mankind.

In this week's episode he reveals some fascinating insights into how the ISS came to be, why it's there and what iis it like to live in space.

If Ronan Keating is to believed Life indeed is a rollercoaster but what is the science behind their exhilarating/terrifying appeal?

In this week's episode Luke answers a listener's request and plunges head first into the hows and whys of rollercoasters, the use of magnets and repulsion and why we keep going back to terrify ourselves silly.

So strap yourself in, it's going to be a topsy turvy ride!

Paris 2024 is in full swing and Irish swimmers are having a very successful games with a bronze so far for Mona McSharry and gold for Daniel Wiffen.

On this week's Show Me The Science, Luke takes a timely look at the history and evolution of swimsuit design and how scientific advances have helped swimmers maxmise their performances in the water.

The use of processed foods has lead to longer shelf lives and cheaper foods but just how damaging are they to our long term health? In this week's episode Luke lays bare the stark reality of the damage over compumption of ultra-processed food is causing. What exactly is the definition of ultra-processed food? Why and where is it so damaging and what can the huge number of studies do to help curb it's fatal influence.

This week Luke responds to a request from a listener to do an episode on the general science of evolution and he has duly obliged. Why do we see evolution? How LUCA started it all, the effect of modern technology and how the study of evolution could lead to breakthroughs in the treatment of diseases such as alzheimers.

It's a question that has puzzled and perplexed the greatest minds for eons and has literally had them scratching their heads. Why do some people go grey and/or go bald and why do others keep their colour and lucious locks?. The answer science is discovering is a fascinating one and it just might have you binning your Grecian 2000 soon. Luke also reveals an incredible connection between balding and becoming president of The United States. Hair raising stuff!

Turbulence might be one of the only things that might make you dread jetting off on your summer holidays, especially after recent reports of injuries sustained on flights.

Luke will put your mind at ease by explaining the science behind the phenomenon and the differences between the various types. He also explains why there's an apparent increase in turbulence and why it's becoming more likely with global warming.

50,000 years ago homo-sapiens arrived in Papua New Guinea - It was a big change of environment and the evolution of the people there is a clear demonstration of the survival of the fittest.

Research looking at the DNA of the people in Papua New Guinea showcases two big genetic differences which helped them to survive. For one group living in the mountains, a variant which increases your red blood cell count helped them to cope with the altitude. Another group living in the jungle possessed a genetic variation making them prone to inflammation to fight off infection.

Luke explains the history of human evolution across Earth and in Papua New Guinea specifically and what these findings mean going forward.

What is the role of the brain in our immune response? We already know that the brain makes us feel rotten when we're sick so we stay away from the rest of the herd and don't spread the infection further. But, now there is new research into the brain stem which showcases the two neural pathways that increase and suppress inflammation.

While there are still questions to be answered about finding the right balance of suppressing inflammation without leaving us susceptible to infection, Luke explains why it's such an exciting breakthrough.

You know if things had worked out differently 800,000 years ago you wouldn't be here to listen to this podcast? There wouldn't even BE podcasts which is even more shocking to comprehend. In this week's episode Luke discusses how fossil records have recently revealed that there was a big disappearance of hominids which has led them to conclude that we may not have happened!

There is no doubting that A.I is here to stay and it is here to revolutionise pretty much every aspect of our lives. There has been many concerns as to what that future will look like but in this week's episode Luke tries to allay at least some of those fears by identifying 4 major benefits of A.I.

Utilizing our own immune systems to fight cancer has always been an interesting idea to scientists, and now there's serious progress being made in this filed that could see us developing personalized treatments for the disease.

Radiotherapy, chemotherapy and surgeries are all useful treatments but a vaccine against the tumor could be much more effective without being as intrusive.

Luke explains how they might make these vaccines and gives the latest update on the clinical trials going on.

Between 1980 and 2009, the rate of twinning in the US increased by 76%, and this trend is seen across the world. Twins can be either fraternal where two eggs are fertilized at the same time, or identical where one fertilized egg splits in two. Both of these offer huge opportunities for scientists to learn about genetic traits and environmental impacts on development.

Luke explains what we've learned from twin studies and why they're so useful.

The Covid-19 pandemic may still be fresh in all our memories, but scientists are already looking ahead to the next big pandemic to allow us to prepare and get ahead of it.

A flu virus seems to be the most likely cause and in particular there is concern around the H5N1 strand which has now jumped from birds to cattle, and even a few dairy farmers. Human to human transmission is the next big warning sign which is being closely monitored.

Luke explains what we learned during the last pandemic to prevent the spread of another virus and another global lockdown.

We all have our favourite songs - The ones that remind us of childhood memories, give us a boost of energy or the ones we play to make us cry. But where did music come from and what makes us connect so strongly to it?

Luke answers these questions as well as explaining what makes some people so talented musically, and others more tone deaf.

How can we increase our life expectancy? Do we have any control over it or is it all to do with our genetic makeup? A new study into microscopic worms has revealed how their genes allow them to enter a 'dauer' state of almost hibernation during times of limited food and in doing so expand their lifespan from 2 weeks to over 2 months. Luke explains how this works and how this finding could be useful for humans.

Why did we all put our clocks forward by an hour a few weeks ago? And why will we push them back again come autumn? The historic justifications were to allow for brighter mornings in the autumn and winter and extra daylight at the end of the working day across spring and summer. But, now there's some push back on the practice and Luke explains why some think it's harmful.

Is 2024 the year we'll finally see self driving cars on our roads? While there are already some 'Robo-cabs' in service in the United States aiming to provide a 'safer' driving experience, there are still big challenges for the futuristic technology before they can be more widely rolled out. Luke gives us an update of the latest state of affairs in the world of driverless cars.

When new machinery was first invented, researchers notices that frequent users such as factory workers or typists were developing repetitive strain injuries. And, now that technology has become such a crucial part of all our lives, and we all spend hours daily with our heads tilted down at a screen they are seeing a surge of the phenomenon known as 'Tech Neck' .

Luke looks at the research into the muscle strain and offers some solutions for those suffering.

Why does the immune system differ from person to person? Why do some people seem more resistant to infections or viruses than others? New research has sought to answer these questions, and in the process shown the impact of smoking on your immune system and in particular the effects on the adaptive immune response.

Luke takes us through the new research and explains how smoking can turn off some of our internal defense systems.

An Irish research team has just had a breakthrough on their research into Long Covid. Luke recaps what we already know about the condition which causes brain fog and fatigue in roughly 1 in 3 patients infected with Covid-19.

He also explained what the brain blood barrier may have to do with it, and what potential treatments or preventative measures may come from this research.

Elon Musk's latest venture 'Neuralink' which aims to place a chip within the brain of a human has shown 'promising neural spike detection'. This means that down the line a brain implant could pick up on our thoughts and communicate them directly to a computer, allowing our thoughts to be sent as text messages without ever picking up a phone, or to move a prosthetic limb with ease.

Luke takes us through the latest developments in the world of brain implants and offers other examples of their existence already in circulation such as cochlear implants.

Could Viagra an erectile dysfunction drug, have a second function working to prevent Alzheimer's?

Luke recalls how the drug was initially created to treat angina before it's accidental side effect made it a huge success for Pfizer. He explains how the drug works and why researchers are looking at it more closely now.

Are you a night owl looking to become more of a morning person?

There are lots of health benefits to waking up earlier but is it even possible to become a morning lark if it's against your nature? Luke explains the role our genes and even the Neanderthal's play in our chronotypes.

He also offers some tips for changing your sleeping patterns and explains how your sleep patterns alter over time.

How many times should you shower each week? Or should we shower at all? The average changes depending on location and culture, ranging from 12 per week in Brazil to 5 per week in the UK.

We all know the obvious risks of not showering enough, but showering too much can also have it's downsides like overly dry skin and increased risk of infection. Luke explains how showering affects our body and why our bodies make things like sebum and sweat that we wash away.

Multiple sclerosis also known as MS is an auto immune disease that causes symptoms such as muscle weakness, pins and needles, double vision, poor balance and fatigue. There are various factors that affect your chances of developing MS including genetics, geography and according to a new study exposure to the Epstein–Barr virus. Luke explains the thought behind this new research and how it could help find a preventative measure for MS.

Although it might seem like it was just yesterday, it's already been 4 years since the first fatality as a result of Covid-19. Luke takes us back to what we knew then and shows just how quickly science reacted to the disease with things like vaccines and therapeutic remedies. He also asks what we have learned from the last 4 years and the most important question of all - Are we ready for the next pandemic when it comes along?

We might understand what causes an itch in theory: an insect bite, a healing wound, a poisonous plant. But, where does the urge come from? And what's going on within our bodies to make us scratch? Luke explains the science and the latest research which might finally result in remedies for those suffering with issues like dermatitis or eczema.

A dark tunnel with a light at the end, family and friends who have already passed on, or a religious figure are all common visions following near death experiences. But, what really happens when our hearts stop? And where do these visions come from? A new study of resuscitated patients in 3 hospitals across the world sought to answer these questions and in this episode Luke explains their findings.

As we begin a new year bound to bring with it a multitude of exciting scientific discoveries, Luke takes stock of the year just gone and all of the exceptional breakthroughs from 2023. It was a big year for science, as aging was reversed, Alzheimer's slowed, and the true number of steps needed for health revealed. AI has already had a big impact on science and this year was no different, Luke talks us through some of the highlights, while waiting to see the inevitable role it will play in the scientific advancements of 2024.

Proteins are the work horses of life and the building blocks for everything from enzymes and antibodies to hormones and of course muscles. Many gym goers add additional protein to their diet in order to build extra muscle. Luke explains how your body build muscles and the benefits of protein supplements, as well as exploring what is actually in them and asking if there is really science behind the claims that they help to build muscle.

Frankincense and myrrh are probably most famous for being two of the three gifts brought by the Wise Men to the newborn baby Jesus, along with gold. But, they are also ancient herbal remedies. The salve extracted from the myrrh tree was used to heal wounds while frankincense had its own uses such as in religious ceremonies and as a perfume. Luke explains why these were so valuable in ancient times, how they worked to suppress pain, and he explains how they could inspire modern day medicines.

Our immune system is constantly working hard to protect us from infection and disease, but try as it may it has always struggled to defend our bodies from tumours and cancerous growths. For years, scientists have been looking for a way to stimulate the immune response more effectively in the fight against cancer. Luke takes us through the various successful and unsuccessful attempts to do just this as well as the new drugs that are reducing the death rates from melanoma.

We all know that our muscles get tired after we use them, but what about our brain? Does it need rest too after strenuous use? Luke delves into the world of mental exhaustion to explain what we know, as well as the latest breakthroughs and how they might lead to cures for Alzheimer's and allow us to focus for longer.

Did you know that being a heavy metal music fan might actually help the climate crisis - Or at the very least that's one of the aims of the musical genre where the lyrics frequently call out inequality and problems within society. Listening to the distorted guitar riffs and stylized vocals can also help improve mental health, while head banging along has it's own benefits too, provided you don't get too into the music and hurt yourself! Luke explains the science behind the musical genre's surprising benefits.

Everyone loves a trip away, but when you're afflicted by motion sickness it can make the journey and any necessary travel plans very arduous - Be they on a plane, in a car or onboard a ship. Luke explains the causes of motion sickness, the various symptoms and the breakthrough that means a cure might not be too far away!

The winners of the 2023 Nobel Prize for Medicine or Physiology have been announced! And the coveted prize has been awarded to two scientists, Katalin Karikó and Drew Weissman for their research on how to use RNA in a vaccine. Luke tells us about the winners, and talks us through their work as well as it's significance for the world of science and medicine.

Could bacteria and viruses cause psychiatric disorders?

This week Luke receives a request from a concerned grandmother and is happy to seek out the answers she needs. He explores a fascinating new arena of medical science, and tell us about work being done to develop therapies, and even vaccines, to combat major psychiatric disorders in children.

Artificial intelligence is a new frontier for scientists and researchers to explore. Luke talks us through some of the applications of the new technology, including as an educational tool, as a way of filtering online hate, and even to speed up the development of new drug therapies. He also addresses some of the concerns around the proliferation of AI and explains why we should embrace it.

Aquamation is a new alternative to traditional burial or cremation after a loved one has passed away. The process involves exposing the remains to a mixture of a strong alkali and water which eventually dissolves away the remains. Luke explains how it works and why it's better for the environment than the traditional ways of handling a remains.

Pollen, shellfish, nuts, cats, penicillin - The list of allergens is never ending. But, what exactly is an allergy and why do certain people's bodies react so strongly to seemingly harmless things? Luke explains what's happening internally during an allergic reaction and updates us on the latest scientific research that might lead to a cure.

The Earth formed 4.5 billion years ago and relative to that human life, and even life in general is a considered quite a new phenomenon. But, where exactly did life come from? And how did we eventually evolve to where we are today? Luke brings us right back to the start and takes us through the origins of life as we know them.

A colony on Mars is the next big step in space exploration. But, with such a long journey ahead of them, in such a confined area, how does the team of astronauts get chosen? Luke explains the science and psychology behind choosing the team and their motto - 'Leave the jerks at home.'

A mysterious serpent that lives beneath the dark waters? A hoax? An abnormally large eel? There are many theories about the existence, or not, of the Loch Ness Monster. Now, the largest ever study of the murky lake has taken place as scientists search for a definitive answer. Luke takes us through the study, and the theories that inspired it.

The vagus nerve is the electrical superhighway of our nervous system - But just what does it do? And could triggering it be one potential solution to issues as wide ranging as obesity and depression to rheumatoid arthritis and Crohn's disease?

Luke takes us through the latest research into the vagus nerve and explains how simply zapping it with electricity or triggering it through the ear might have positive effects.

We've all heard that we should be getting 10,00 steps a day - But is this backed up by science? How many steps do we actually need to see benefits for our health? Luke takes us through the latest science that suggests less than half of that figure may be enough to reduce your risk of dying.

Our genome is the recipe that makes us who we are and the day the human genome was finally mapped out was one of great celebration for scientists across the world. Yet, we still do not know what one fifth of those genes do. But, as Luke explains, thanks to new research some of these gaps in our knowledge are being filled.