‘Save your money’: no evidence brain health supplements work, say experts

Worldwide panel says it cannot recommend healthy people take ‘memory supplements’

Dietary supplements such as vitamins do nothing to boost brain health and are simply a waste of money for healthy people, experts have said.

According to figures from the US, sales of so-called “memory supplements” doubled between 2006 and 2015, reaching a value of $643m, while more than a quarter of adults over the age of 50 in the US regularly take supplements in an attempt to keep their brain in good health.

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Summer Rolls review – fascinating tale of Vietnamese family in Essex

Park theatre, London
A mother’s fierce love lies at the heart of Tuyen Do’s nuanced portrait of a family forging a new life in the UK

A light Vietnamese dish served at a family’s restaurant? Or a sneaky spliff rolled by their unruly daughter? Double meanings lie at the heart of the intriguing Summer Rolls by Tuyen Do. It’s an intimate domestic drama, sketched with compassion and steely honesty, about a family who have left war-torn Vietnam and are struggling to forge a shared future in the safety (or is that boredom?) of Essex.

The shifting dynamics – as slippery as the language that young Mai’s parents struggle to adopt – are fascinating to observe. At the centre of the home (coolly lit by Jessica Hung Han Yun) is the mother, otherwise unnamed and played with a brittle ferocity by Linh-Dan Pham. She is the family’s fulcrum: the one who sets the tone (tense), who holds together the family sewing business (fragile), who later runs the restaurant (success!) and who still, when desperately ill, commands the family with a blazing love that is both frightening and comforting.

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Global gag rule linked to abortion rise in African countries that accept US aid

Study finds Trump-backed policy led to increase in pregnancies and reduction in use of modern contraceptives

A US government policy that restricts funding to organisations that conduct or support abortions has been linked to a 40% increase in terminations in African countries that depend on American foreign aid, according to new research.

Related: Medical experts criticise BBC for use of phrase 'heartbeat bill'

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‘People are very scared’: fighting dengue fever in Brazil – in pictures

Dengue fever is one of the most deadly mosquito-borne diseases – half the world’s population is at risk from it. Adrienne Surprenant’s photos from the World Mosquito Program in Brazil capture the fight against it

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Rich nations could end cervical cancer within decades, say experts

Study shows HPV vaccine has greatly reduced infections among girls and young women

Elimination of cervical cancer in wealthy countries such as the UK may be possible within decades, say experts, following a major study showing the success of the HPV jab in protecting women.

Human papilloma virus, which is sexually transmitted, can cause cervical cancer as well as anogenital warts. Data from high-income countries shows vaccination has led to an 83% reduction in HPV infections in 15- to 19-year-old girls over five to eight years. Among women aged 20 to 24, infections are down 66%.

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Uncovered: the £200m theme park, the businessman – and the missing millions

A Guardian/ITV News undercover investigation raises concerns about Gavin Woodhouse, who is behind project endorsed by Bear Grylls

A new £200m outdoor adventure park, which is being launched with the support of the celebrity adventurer Bear Grylls, is being fronted by a financier who has raised millions of pounds from private investors and whose businesses have a multimillion-pound “black hole”.

Related: How Gavin Woodhouse raised millions for a string of stalled projects

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Growing evidence suggests Parkinson’s disease starts in gut

Research shows key proteins in disease can spread from gastrointestinal tract to brain

Evidence that Parkinson’s disease may start off in the gut is mounting, according to new research showing proteins thought to play a key role in the disease can spread from the gastrointestinal tract to the brain.

The human body naturally forms a protein called alpha-synuclein which is found, among other places, in the brain in the endings of nerve cells. However, misfolded forms of this protein that clump together are linked to damage to nerve cells, a deterioration of the dopamine system and the development of problems with movement and speech – hallmarks of Parkinson’s disease.

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Creature comforts: has the US’s emotional support animal epidemic gone too far? – video

Emotional support animals, or ESAs, have exploded across the US in recent years, with rising numbers of pet owners getting their animals certified online. Unlike in the UK, ESAs have legal status in the US on a tier below traditional service animals, but the backlash has begun – with critics complaining the system is being abused by regular pet owners who want to take their animals into unsuitable public spaces. The Guardian's Richard Sprenger – animal lover but pet sceptic – meets ESA owners and their animals across North America.

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The Pacific is in danger of becoming a semi-narco region

Caught in the middle of a drug trafficking route, island countries are in danger of falling under the control of drug cartels

Four years ago I stood in front of a top level security conference and warned that we have just a few years to get on top of the problem of drugs being trafficked through the Pacific region or it could turn into a semi-narco region, controlled by criminal syndicates.

In the four years since I gave that speech, things have gotten worse.

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Woman ‘poses as dead cyclist’s aunt’ to oppose new London bike lane

Heather Cairns says woman ‘masqueraded’ as her daughter Eilidh’s aunt at council meeting

A woman posed as the aunt of a cyclist who was killed in London in order to oppose plans for a new segregated bike lane, according to the victim’s mother.

Eilidh Cairns, a television producer from Alnwick in Northumberland, died aged 30 in 2009 after being hit by a tipper truck while riding in Notting Hill in the borough of Kensington and Chelsea.

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Humans v the city: the staggering scale of Chongqing – in pictures

Chongqing’s population is estimated at just below 10 million but that rises to more than 31 million if the built-up surroundings are included. Belgian photographer Kris Provoost finds that in a city so large, individuals can get lost

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Austerity and inequality fuelling mental illness, says top UN envoy

Exclusive: Special rapporteur on health says social justice more important for mental health than therapy and medication

Austerity, inequality and job insecurity are bad for mental health and governments should counteract them if they want to face up to the rising prevalence of mental illness, the UN’s top health envoy has said.

In an exclusive interview with the Guardian to coincide with a hard-hitting report to be delivered to the UN in Geneva on Monday, Dr Dainius Pūras said measures to address inequality and discrimination would be far more effective in combatting mental illness than the emphasis over the past 30 years on medication and therapy.

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Upset about the plastic crisis? Stop trying so hard

We make good-faith efforts to help the planet by recycling, but what we really need to do is even simpler

Did you ever decide to get off a jammed freeway and take the backroads even though deep down you knew that it wouldn’t be any faster? Are you constantly switching to the faster lane on a busy freeway even though you notice that cars sticking to their lanes keep catching up with you?

Both are examples of action bias, the phenomenon in which people prefer doing something over doing nothing, even if the likely outcome of the action is worse than the outcome of inaction. Research has shown that actively managed portfolios tend to do worse than passive investments. And one study found that soccer goalkeepers prefer to jump left or right during a penalty kick, even though the best thing would be to stay put in the middle.

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‘I can change it for others’: the woman who exposed Irish smear tests scandal

If a test in 2011 had been accurate, Vicky Phelan might have avoided cancer. Now she is trying to give some hope to terminal patients

When Vicky Phelan was told in January 2018 to get her affairs in order because she had less than a year to live, she crumpled. “The legs went from under me,” she recalled.

Emerging from the doctor’s office she avoided the gazes of her daughter and mother waiting outside and sought refuge in a bathroom. “I was in there for about 20 minutes. I bawled my eyes out.”

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Cocaine used as washing powder: police struggle with Pacific drug influx

Under-resourced but undeterred, Fiji’s officers battle surge in trafficking – with just one boat

• The new drug highway: Pacific islands at centre of cocaine trafficking boom

Sitiveni Qiliho, Fiji’s police commissioner, says he doesn’t watch films any more because, since taking on Fiji police’s top job two years ago, his life has enough drama.

Over the past few months he has found himself scuba diving in search of multimillion-dollar stashes of cocaine stored in huge underwater nets, arresting drug traffickers on the high seas and informing remote islands communities that the mysterious packages washing up on their beaches are full of cocaine and shouldn’t be baked into cakes or put in tea.

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Biden stumbles over abortion rights while Warren receives cheers

In a first-of-its-kind forum, the former vice-president claimed a ‘100% voting record’ – before his mic suddenly cut out

In the first presidential forum on reproductive rights in recent memory, former vice-president Joe Biden told an audience of mostly female Planned Parenthood supporters he had a “100% voting record” on reproductive rights.

In fact, his record on the subject is mixed, as a question to the former vice-president suggested.

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Business heads urge next PM to commit to finishing HS2

CBI among industry groups to sign open letter amid concerns over project’s future

Business leaders are calling on the next prime minister to commit to completing HS2, adding that if they do not they risk blocking future investment in the north.

In an open letter, more than 20 figures from industry and commerce have called for the next Tory leader to back the project in full.

It comes amid speculation that the next prime minister – with Jeremy Hunt and Boris Johnson now the final two MPs vying for the position – could decide to axe the second phase of the project due to concerns over spiralling costs.

Johnson is reported to have asked a former boss of the £56bn scheme to carry out a review if he is made prime minister, while Hunt has said HS2 is “absolutely vital” and he would not scrap the project in its entirety.

Signatures of the letter include the Confederation of British Industry, the Institute of Directors, the British Chambers of Commerce, the Federation of Small Businesses and London First, the BBC reports.

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Trouble in Paradise: the rise and fall of Germany’s ‘brothel king’ | Hilke Lorenz

Jürgen Rudloff’s chain of ‘wellness spas’ sold sex as a health service for men. But his business model was fatally flawed – as his trial for aiding and abetting trafficking revealed

Until his dramatic fall from grace, Jürgen Rudloff was the self-proclaimed “brothel king” of Germany. Owner of a chain of clubs he boasted was the “the largest marketplace for sex in Europe”, he was every inch the well-dressed entrepreneur, a regular face on reality TV and chat shows.

Rudloff is now serving a five-year sentence for aiding and abetting trafficking. His trial laid bare the misery and abuse of women working as prostitutes at his club who, according to court documents, were treated like animals and beaten if they didn’t make enough money. His imprisonment has dismantled the idea of Germany’s “clean prostitution” industry and raised troubling questions about what lies behind the legalised, booming sex trade.

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My gay son: ‘The family said we should send him to Syria for conversion therapy’

Could an ‘outrageously heterosexual’ father handle his eldest child coming out at 16?

Sam Khalaf and his son Riyadh used to call themselves the two musketeers. When Riyadh was growing up in Bray, south of Dublin, they were inseparable. Like twins or best friends, they say. So the Iraqi-born, Irish citizen remembers keenly the moment when he realised his eldest child had drifted from him.

“We used to go everywhere together,” 54-year-old Sam recalls. “Every weekend we’d go to a tropical fish shop and pick out which koi carp to go into our pond. The first time Riyadh didn’t come with me, he was about 15. And the lad who worked there said: ‘Where’s your mate?’ I said, ‘He’s grown up now, he’s out with his friends.’ It was a shock to the system.”

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Vyleesi: latest attempt at ‘female Viagra’ approved by US regulators

Pharmaceutical known chemically as bremelanotide is aimed at women with low sexual desire disorder or HSDD

Drug regulators in the United States have approved Vyleesi, the latest attempt to come up with a “female Viagra” for women with low sexual desire.

Vyleesi, chemically known as bremelanotide, is said to activate pathways in the brain involved in sexual desire, helping premenopausal women with hypoactive sexual desire disorder (HSDD). It has been developed by Palatin Technologies and licensed to Amag Pharmaceuticals, and is expected to be available from September through select pharmacies.

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