They judged the youthfulness of cells by looking at chemical tags known as methyl groups on the surface of DNA molecules. These tweak the activity of specific genes without altering DNA code, a process known as epigenetic modification. The pattern of these methyl groups changes as we age, which is believed to contribute to accelerated cellular ageing. While nutrient-rich diets were tied to slowed ageing, added sugars seemed to dampen the effect.
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Denne historien er fra Issue 194-utgaven av How It Works UK.
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EXPLORING THE MOON'S CAVES
Earth's rocky neighbour is home to a network of unexplored caves, and scientists are keen to take a peek inside
20 WEIRDEST SCIENCE MYSTERIES
From dark matter to deep-sea crabs, science still can't fully explain these strange quirks of nature
THE TRIANGULUM GALAXY SHINES IN A NEW HUBBLE IMAGE
A nearby galaxy is shining with star formation in a new image from the Hubble Space Telescope.
Real-time brain stimulation slashes Parkinson's symptoms by half in trials
Brain stimulation that rapidly adjusts in real-time can dramatically reduce Parkinson’s symptoms, an early trial suggests.
The hottest ocean temperature in 400 years threatens the Great Barrier Reef
The Great Barrier Reef is facing the hottest sea surface temperatures in four centuries.
Albatross eating mice sentenced to death by 'bombing'
Invasive mice are eating albatrosses alive on a remote island in the Indian Ocean, so conservationists have come up with an explosive solution: ‘bombing’ the mice.
XB-1 PROTOTYPE ACES ITS SECOND TEST FLIGHT
Colorado-based company Boom Supersonic’s XB-1 supersonic demonstrator aircraft flew for the second time ever on 26 August 2024.
BECOME A SMARTPHONE SCIENTIST
Amazing tips and tricks to transform your smartphone into a bug-finding, star-spotting, data-gathering device
ALL ABOUT FAT
Fat is a complex, active organ. Here's how genetics, evolution, lifestyle and diet dictate how much we have beneath our skin
The Space Force is launching lasers into orbit
The Space Force aims to better pinpoint the location of Earth's true centre using lasers on GPS satellites, slated to launch in 2025. A set of Laser Retroreflector Arrays, or LRAS, will be installed onto two GPS III satellites, SV9 and SV10, as part of NASA's Space Geodesy Program. The lasers are designed to make precise sub-centimetre measurements using a technique called Satellite Laser Ranging, which will allow researchers to more accurately determine Earth's centre.
