Good morning. Thomas Morgan here with today's AM newsletter.

The global population is greying at an unprecedented rate, and new forecasts warn we need to do more to mitigate the looming surge in dementia cases.

Before that, a fresh warning to Australians considering overseas cosmetic surgeries. And in South Africa, Matt Renshaw continues his exceptional Test performance.

Cosmetic questions: Australians are seeking surgery abroad, and at least one Korean company appears happy to accept their business. But after questions from the ABC, Restory Plastic Surgery's Sydney event was suddenly cancelled.

Our reporter questioned whether two doctors appearing at the event were licensed to practise in Australia. Laws prohibit unregistered doctors from providing medical consultations or services in the country.

It's just one example of how slick advertising and social media influencers are selling overseas cosmetic surgery to Australians, while the possible complications barely rate a mention.

Dementia warning: Millions more people will be diagnosed with the condition worldwide each year by 2050, research shows. That "scary" prediction is leading to calls for action to mitigate the potential impacts.

Artificial intelligence: A federal inquiry wants Australia to take a more decisive role in shaping the future of AI. But hopes have taken a hit by a disappointing Firmus float on the ASX.

'Cliff-like' decline: A new US study using 300 million lab tests finds menopause in women hits suddenly rather than gradually. Australian experts aren't convinced.

Chris Edwards say smart glasses give him the "life-changing" ability to do things others may take for granted.  

Despite the privacy concerns and safety vulnerabilities that are dominating the debate around them, people who are deaf and blind say the devices are bringing benefits that could be lost to a heavy-handed approach.

Matt Renshaw's dream test has continued in Durban with Australia in a dominant position over South Africa on day four.

Fresh off scoring 190 runs in his first innings, Renshaw notched up another 82 runs before later taking his first Test wicket by catching out South Africa captain Temba Bavuma.

A South Korean cosmetic surgery company has cancelled a Sydney event where prospective patients were due to meet doctors not registered to practise in Australia.

Alarming new dementia figures show an estimated 24.7 million people will be diagnosed with the disease each year by 2050 and women will be at higher risk than men.

Amidst the wreckage of last week's failed mega capital-raising by data centre provider Firmus Technologies was a creeping sense that, once again, Australia had somehow fallen short.

Democrats accuse Donald Trump of "abusing his power" as immigration agents carry out a pre-dawn raid on the home of Ilhan Omar, a naturalised US citizen born in Somalia.