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BBC Science Focus - September 2025

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Dans ce numéro

THINK YOURSELF YOUNGER
How a positive mindset slows biological ageing

THE ULTIMATE GUIDE TO GETTING BETTER SLEEP

THE STRANGE TRUTH ABOUT QUANTUM TIME

HOW CLIMATE CHANGE CAN TRIGGER EARTHQUAKES THAT LEVEL MAJOR CITIES

YOU’RE ONLY AS OLD AS YOU THINK
Science is showing how much a positive mindset can affect your health during your golden years.

All in one

Think back to the cell diagrams in your biology textbooks at school and you might recognise this.

1 mins

Cats get dementia too. And it could help us find a treatment

New research has found that felines develop dementia in a similar way to us, opening the door to further research

4 mins

A massive earthquake may be brewing beneath North America

No one knows when it will strike... but everyone agrees it will be a huge rupture

2 mins

A simple tool can now reveal your heart's real age

Most US adults have a heart that's ageing faster than they are sometimes by more than a decade according to a new study led by Northwestern University, in the US. Published in JAMA Cardiology, the study used a new calculator to estimate 'heart age' in over 14,000 US adults without prior cardiovascular disease.

1 mins

Some dog breeds are more at risk of overeating

Scientists can finally explain why certain breeds, such as labradors and retrievers, are more at risk of becoming loveable loaves

1 mins

Land, not ice, is now driving rising sea levels

The world's driest regions are merging - and the consequences are global

1 mins

Eating eggs every day could lower your cholesterol

For years, eggs have been seen as a cholesterol culprit - but new research Suggests that reputation may be undeserved

1 mins

An underground tomb might be hiding next to the Giza pyramids

It could be a hidden doorway, but experts aren't sure

1 mins

Having only boys or girls may run in the family

It's not just chance: women who've had multiple children of the same sex are more likely to have another baby of the same sex

1 mins

Meet the dinosaur eater

A new fossil reveals the life of an ancient crocodile species that probably preyed on dinosaurs

1 mins

Documentary reveals the science behind turtle mother calls

In the new BBC documentary Parenthood, baby turtles see sunlight for the first time and crawl towards their singing mothers

2 mins

The UK's new online age verification system has an unintended consequence

Psychologist Dr Sam Carr reveals how the new age checks are making us stop and think before accessing porn, and why our brains could thank us for it

5 mins

A top secret US spacecraft is rewriting the rules of warfare

The X-37B returned to Earth last month, but details of its time in space remain a mystery

4 mins

SHOCK THERAPY

Can a wearable neuromodulation device that delivers small electric shocks banish anxiety?

4 mins

Protecting your ID online

The Online Safety Act has thrust VPNs into the spotlight, but what are the best ways to protect your identity online without relying on one?

3 mins

EDITOR'S PICKS...

This month's smartest tech

3 mins

A QUESTION OF QUANTUM TIME

The closer we look at time, the stranger it gets

7 mins

THE EXPERTS' GET-TO-SLEEP-QUICK TRICKS

Everyone has trouble sleeping from time to time, even the scientists who spend every waking hour studying it. So, what steps do the experts take when they can't drop off?

7 mins

HEATQuakes

Climate change isn't warming the planet, it's shaking Earth's foundations

8 mins

YOU'RE ONLY AS OLD AS YOU THINK

Your attitude towards ageing can reduce the toll time takes on your brain and body. It's a statement that sounds ridiculous, but the science backs it up. The question is: how much could a change of attitude change your life?

8 mins

ASTRONOMY FROM THE FAR SIDE

THERE'S ONLY ONE PLACE TO GO IF WE WANT TO CATCH SIGHT OF THE COSMIC DAWN

7 mins

Do pheromones control human attraction?

Could invisible chemical signals sway our behaviour, or who we're attracted to - all without us knowing?

4 mins

HOW MUCH OF THE OCEAN IS JUST WHALE PEE?

It's not true that the seas are salty because of whale pee, although a single fin whale can produce as much as 250 gallons of urine a day.

1 mins

THE PLATYPUS

When European scientists first set eyes on the platypus, in the form of a pelt and a sketch shipped over from Australia in 1798, they couldn't believe it.

2 mins

HOW STABLE IS MY PERSONALITY?

One way to think about this question is to imagine going to a class reunion when you're in your 80s.

2 mins

WAS THE SEA ALWAYS BLUE?

Our planet has had an ocean for around 3.8 billion years, but new research suggests it hasn't always been blue.

1 mins

DO ANY FOODS TASTE BETTER IN SPACE?

Not usually.

1 mins

COULD A VIRUS CHANGE MY DNA?

It already has. Our personal genomes (the genetic information of an organism) are littered with the remnants of viruses that infected our ancestors.

1 mins

WHY IS MARS RED?

One of the most recognisable features of Mars is its red colour. Even the naked eye can clearly discern the Red Planet's ruddy hue. Humans have wondered where this red colour comes from for centuries, perhaps millennia.

1 mins

COULD SOMEONE ACROSS THE COSMOS PICK UP OLD RADIO PROGRAMMES?

Theoretically, the radio signals from our earliest broadcasts have been spreading outwards through space since the beginning of radio.

1 mins

I KEEP HAVING NIGHTMARES. SHOULD I BE WORRIED?

Most of us have the odd bad dream. But if you're regularly waking in a cold sweat, you might be wondering: is it just stress, or something more serious?

1 mins

ART FOR HEART'S SAKE

Practising art - or just looking at it - can improve your health. Here's why we shouldn't brush off the benefits

2 mins

Lire toutes les histoires de BBC Science Focus

BBC Science Focus Description:

Éditeur: Our-Media-Ltd

Catégorie: Science

Langue: English

Fréquence: Monthly

BBC Focus Magazine is the magazine of popular science and technology that explains the wonders of the Universe through stunning photography and accessible articles. Contributors include the very best writers and science experts, with columns every issue from renowned science writer Robert Matthews, TV presenter and scientist Helen Czerski, and science fiction author Stephen Baxter. From archaeology to neuroscience, climate change and particle physics, BBC Focus Magazine keeps you up to speed with the cutting-edge science and gadgets that will change our world.