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May 3 10 tweets 4 min read Twitter logo Read on Twitter
Cases of attention deficit hyperactivity disorder are rocketing, but what's the cause? Fortunately, we now have a better understanding of the condition - and how to identify those who have it #ADHD newscientist.com/article/mg2583…
It seems like everyone is talking about ADHD at the moment, from people down the pub to online influencers

Posts on tiktok with the #ADHD have 23 billion views. And we know that diagnoses are rising too

But what’s behind all this interest?
Caroline Williams (@ScienceCaroline) – who suspects she has ADHD herself – wanted to find out

Are people who are a bit fidgety jumping on the bandwagon? Or have we actually been under-diagnosing people for years? People with ADHD can find t...
There are reasons to worry about over-diagnosing ADHD

In the US, services that offer a diagnosis and stimulant medication to treat the condition have been springing up. In theory, they have an incentive to over-diagnose people
The best way to see if we are over-diagnosing is to look at how many people we expect to have #ADHD

Studies that looked at random groups of people to see how many have ADHD symptoms suggest that around 3 per cent of adults and 5 per cent of children meet the criteria Image
When we look at data on diagnosis rates, England the Australia are way below that, while the US is roughly where we would expect The prevalence of ADHD: Our...
Experts told @ScienceCaroline that many of the people who think they have ADHD and seek a diagnosis are often right
We’re also getting better at finding out quickly who really has ADHD

Traditionally, the diagnosis depends on the opinion of a doctor. But these days there are cognitive tests can help us rule people in and out more objectively ADHD was once thought to af...
Of course, not everyone sees ADHD as a problem

People who have it are often highly creative and, counterintuitively, have the ability to hyperfocus on topics that really interest them
In fact, some say the condition ought to be renamed – it’s not so much a deficit of attention, but the a difficulty with controlling where it is directed

Learn more about #ADHD, in @ScienceCaroline's full feature:

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More from @newscientist

May 4
In this week's issue: Cases of #ADHD are rocketing, but what's the cause? Here's what we know about the condition

Grab a copy in shops today or download our app for audio and digital editions
newscientist.com/issue/3437/ Image
It seems like everyone is talking about #ADHD at the moment, from people down the pub to online influencers

We know that diagnoses are rising too, so what’s behind all this interest?
newscientist.com/article/mg2583…
Do we live in a hologram? Why physicists keep trying to put the universe in a box newscientist.com/article/mg2583…
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Mar 30
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Mar 30
Forget vanity, there's a much better reason to want to banish wrinkles - a new theory suggests skin ageing is causing widespread ageing throughout your body and brain newscientist.com/article/236609…
As skin ages, it degenerates dramatically. In the epidermis, stem cell proliferation slows down, leading to progressive thinning – we lose up to half this layer over our lifetime – and a roughening of its surface
On top of this, as skin ages, more and more cells enter a zombie-like state called senescence

This is bad news, says @claudiacavadas, as the cells pump out a toxic cocktail of inflammatory proteins that damage surrounding cells and connective tissue The left side of William Mc...
Read 9 tweets
Mar 30
In this week's issue: A radical new theory suggests wrinkles may be a cause of aging not just a symptom

Grab a copy in stores today or download our app for audio and digital editions
newscientist.com/issue/3432/
Fifty years ago, Bernard Carr wrote in New Scientist about the mounting evidence for black holes. Now, evidence for these objects is incontrovertible, and Carr is back writing for us – this time about black holes older than the universe
newscientist.com/article/mg2573…
In a lifetime of tree climbing, Nalini Nadkarni has helped expose the secrets of cloud forests – and as the perils now facing them
newscientist.com/article/mg2573…
Read 14 tweets
Mar 29
Meet the cloud forest researcher and secular “missionary” for ecology who has a Barbie doll made in her image newscientist.com/article/mg2573…
When Nalini Nadkarni first ventured into the canopy of a cloud forest four decades ago, almost nothing was known about this unique ecosystem Nalini Nadkarni in the tree...
To explore it, she and a small group of pioneers had to develop special tree-climbing techniques, which have allowed her and others to unlock the mysteries of forest canopy biology
Read 9 tweets
Feb 8
What qualifies as trauma has become a hotly debated issue, with implications for treating people who experience PTSD newscientist.com/article/mg2543…
Giving birth. A car accident. Racial abuse. Many of us feel we have experienced things we would describe as traumatic

Add in a pandemic and experts warned that a mental health crisis was in the making, with cases of post-traumatic stress disorder predicted to soar Streets in Wuhan, China, are all but deserted in January 202
In fact, most of these things don’t actually count as trauma. Research by @giorgiobee at @Columbia has shown that, given time, most of us will recover even from the most horrifying experiences
Read 10 tweets

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