Scientists discover when humans hit 'transition point' that starts to accelerate ageing
The truth of when we start ageing faster has been revealed - and it’s a pivotal point in life.
We all age; that’s just common knowledge, but the exact point when we start accelerating the process and notice visible signs isn’t known to many.
From wrinkles to sagging skin, age catches up to all of us. While you might think it starts as soon as you begin being a parent (because that can age anyone), it’s just not the case, according to science.
However, new research reveals that we start ageing even as young as 30, and the moment it accelerates isn’t too long afterwards.
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Researchers at the Chinese Academy of Sciences made the discovery after collecting tissue samples from 76 people of Chinese descent across major organ systems.
All of the people studied were between 14 and 68 years old and had died from accidental brain injuries.
Throughout the study, they looked at blood vessels, noting they experience ageing faster than other parts of the body.
After finding the proteins responsible for this accelerated ageing, they spotted significant changes in the protein levels of those were between the ages of 45 and 55.
However, some samples showed the ageing process beginning to change at around 30 years old.
Mostly, they noticed this change in the heart’s aorta, believing the blood vessels carry the age-accelerating proteins around the body - and that's all down to the adrenal gland.
The gland, which is located right on top of the kidneys, releases hormones to regulating bodily functions, but researchers found that in older people, there was an increase in disease-related proteins.
While it marks the time out bodies start to age and the signs begin to show, it’s actually at 50 that this peaks and from there, it’s all downhill.
Maja Olecka, who studies ageing at the Leibniz Institute on Aging - Fritz Lipmann Institute in Jena, Germany, but didn't work on the study, spoke to Nature about the findings.
“There are these waves of age-related changes,” she said. “But it is still difficult to make a general conclusion about the timing of the inflection points.”
This recent study also lends further legitimacy to another study, which found that there are two moments in a person’s life that mark accelerated aging.
The 2024 study examined 108 individuals aged 25 to 75, all of whom resided in California. According to the report, approximately 135,000 different molecules and microbes were analyzed, revealing that the pair shifted more frequently in two specific age groups.
Professor Michael Snyder, a geneticist and director of the Center for Genomics and Personalized Medicine at Stanford University and senior author of the 2024 study, said: "It fits the idea that your hormonal and metabolic control are a big deal.
"That is where some of the most profound shifts occur as people age."
Britt Jones