Are you, or is someone you know, ageing? Of course you are: though a handful of wellness influencers claim otherwise, the processes of biological ageing are ticking along within us all. But there’s good news – scientists now understand enough about those processes that we may one day be able to slow them down, or even reverse them. And that day might arrive sooner than you think.
While you should take the claims of social media biohackers with a very large pinch of salt, longevity science is beginning to uncover the mechanisms that make us grow old. It goes far beyond vanity – such scientists aren’t just trying to create new anti-ageing skin creams to smooth fine lines and wrinkles, but real anti-ageing medicines that will slow the advance of those biological processes happening inside all of us.
The biology of ageing essentially causes diseases like cancer, cardiovascular disease and dementia. For example, while having high blood pressure roughly doubles your chance of a heart attack, being aged 80 rather than 40 multiplies that risk by 10. That means understanding the biology behind these enormous risk increases could lead to the greatest revolution in medicine since the discovery of antibiotics. It could transform not just the treatment, but the prevention of disease in the first place.
The prize, if we can identify and treat these underlying causes of ageing, is enormous. If we could make people in middle age a bit biologically younger with drugs that address the ageing process, we could improve everything from heart health to wrinkles, and delay the onset of cancer, dementia and frailty, all at the same time.
Scientists have identified several so-called ‘hallmarks’ of the ageing process – underlying biological and biochemical processes that are common to multiple, different diseases and dysfunctions associated with old age. By tackling these hallmarks, we could potentially prevent many of these problems simultaneously.
この記事は BBC Science Focus の September 2024 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
すでに購読者です ? サインイン
この記事は BBC Science Focus の September 2024 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
すでに購読者です? サインイン
COULD MARINE CLOUD BRIGHTENING HELP US FIGHT CLIMATE CHANGE?
The theory behind marine cloud brightening is that brighter or whiter clouds reflect more sunlight back into space.
IS IT SAFE TO RUN EVERY DAY, OR SHOULD I DITCH MY RUN STREAK TO SAVE MY KNEES?
A running streak, where you run every day without taking rest days, can be highly motivating and beneficial for overall fitness. Running is great cardiovascular exercise and isn't to be discouraged (and finding a routine with some consistency is great). Getting a bit of exercise as often as possible is also hugely beneficial for your mental health.
WHAT MAKES THE MEDITERRANEAN DIET SO GOOD FOR US?
The Mediterranean diet may help you live longer, especially if you also adopt the lifestyle of people living near the Med during the 1950s.
WHAT IS MEXICO'S BLUE HOLE?
The world's deepest blue hole (marine sinkhole) lies off the coast of Mexico's Yucatán Peninsula. It's at least 420m (1,378ft) deep, but explorers still haven't found its bottom.
HOW CAN I TELL IF I'VE GOT HIGH CORTISOL LEVELS?
Cortisol is a hormone produced by glands in our bodies called the adrenal glands, which sit above the kidneys. It plays a critical role in various bodily functions, including regulating metabolism, reducing inflammation and helping the body respond to stress. While essential for our health, chronic elevation of cortisol levels can lead to several issues.
THE LUNGFISH
In 1836, European scientists discovered a peculiar animal from the River Amazon that they struggled to identify. Its eel-like body was a few feet long and its air-filled lungs persuaded anatomists it must be a reptile.
ARE WE THE ONLY SPECIES TO HAVE BEEN THROUGH A STONE AGE?
The Stone Age might conjure up images of early humans, sitting around a campfire or hunting prehistoric beasts, but evidence shows that we're not the only species that has learned how to work with stone tools. Wild chimpanzees (Pan troglodytes) use stone tools to crack open nuts.
Should we scrap daylight saving time?
Most of us look forward to the extra hour we get in bed every October, but researchers argue that changing the clocks twice a year harms our health
THE INTERNET OF ANIMALS
SCIENTISTS ARE USING ELECTRONIC TAGS AND SATELLITES TO TRACK WILD ANIMALS AND CREATE A DATA NETWORK THAT COULD HELP US ADDRESS THE BIODIVERSITY CRISIS
MUSIC FOR A DISTRACTED GENERATION
The number of things competing for our attention is often overwhelming. Can dreamy soundscapes created with neuroscience help our bewildered brains to concentrate?