About one in two Australians are confused about sexual consent with a report also finding young people have a low understanding of sexual violence.

Meanwhile, adults are "paralysed" when considering having conversations with young people about consent because of a perceived lack of clarity.

Those findings from a report by Kantar Public were released alongside an announcement that Australia's human right's watchdog will survey high school students on sexual consent.

Young people aged 16 to 25 had "excusing attitudes" towards sexual violence, the report said.

This is despite 15 to 19 being the most common age for sexual violence to occur, with 63 per cent of sexual assault victims recorded by police between 2014 and 2019 under 18 years of age.

The report found more than one in four young people aged 10 to 17 agreed with the statement "rape results from men not being able to control their need for sex".

About one in four young men agreed "women find it flattering to be persistently pursued, even if they are not interested". Just over one in 10 women agreed.

One in 10 young people also agreed with the statement "women often say no when they actually mean yes".

Australia's national curriculum will get an update next year which includes expanding consent education.

The Australian Human Rights Commission will develop a survey on consent with advocate Chanel Contos.

Australian Bureau of Statistics data shows sexual violence continues to rise, with rates per 100,000 people at 25.69 in 2020, up from 22.03 a decade earlier.

One in two women and one in four women have been sexually harassed in their lifetime. One in six women and one in 25 men have experienced at least one sexual assault since the age of 15.

The report found there was "inconsistent understanding" between men and women on aspects of consent, including whether it could be withdrawn, if a lack of a 'yes' implied consent or if asking for consent spoilt the mood.

"Australian adults have many questions about sexual consent ... but, ultimately they hold them silently," the report said.

"Many feel paralysed in having conversations with young people, because it is understandably difficult to talk about something you are not confident you know intimately within yourself."

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Shane Warne had finished a "ridiculous" diet days before his suspected fatal heart attack on Friday, his manager has said.

Thai police have revealed Warne was suffering chest pains before he travelled to Thailand.

Warne's manager, James Erskine, said the cricketing great had finished a 14-day diet where he only consumed fluids.

"He did go on these ridiculous sort of diets, and he was just finished with one," Erskine told Nine's Weekend Today on Sunday.

"It was a bit all or nothing. It was either white buns with butter and lasagna stuffed in the middle or he would be having black and green juices.

"He obviously smoked most of his life. I don't know. I think it was just a massive heart attack."

Yuttana Sirisombat, superintendent at the Bo Phut police station, told reporters Warne had asthma and had seen a doctor about his heart.

"We learned from his family that he had experienced chest pains when he was back home in his country," Yuttana said, when asked about any prior illnesses.

The death of the 52-year-old 145-Test veteran on the island of Koh Samui is not being treated as suspicious.

Warne was staying in a private villa with three mates, one of whom performed CPR after finding him unresponsive when he did not show up for dinner.

He was taken by ambulance to Thai International Hospital and later his body was transferred to Ko Samui Hospital.

Erskine told Fox Cricket Warne was only three days into a planned three-month holiday and alone watching cricket when he fell ill.

His friend Andrew Neophitou, who was among the group staying in the same villa, went to check on him.

"They were going to have a drink ... or go and meet someone to go out and have a drink at 5 pm and Neo knocked on his door at 5.15 pm because Warnie is always on time," Erskine said.

"He went in there ... and then realised something was wrong. And he turned him over and gave him CPR and mouth-to-mouth, which lasted about 20 minutes and then the ambulance came."

Australia's ambassador to Thailand Allan McKinnon spoke to reporters after meeting with Thai police late on Saturday.

"(The) police station and the hospital in Ko Samui are facilitating the process of getting Shane Warne back to Australia as quickly as possible," he said.

"They have been very compassionate, very efficient and very understanding."

Sirisombat says Warne's body will be moved for an autopsy in the main state hospital in Surat Thani province on Sunday.

A forensic team has inspected the villa where Warne was found and his friends have given statements to police as part of standard procedure.

Erskine says Warne's family is understandably devastated.

"(His) children are in complete shock," he told the Nine Network's Weekend Today.

Meanwhile tributes continue to pour in from all walks of life, with newspapers, celebrities, politicians and adoring fans lining up to recall their memories of the legendary legspinner.

Others left flowers, meat pies, beers and cigarettes at his statue outside the MCG throughout Saturday, where the southern stand will be renamed the S.K. Warne Stand in his honour.

The Victorian and federal governments have each offered a state funeral to his family, which includes Warne's daughters Brooke, 24, and Summer, 20, and 22-year-old son Jackson.

"Nobody who saw Shane Warne play will ever forget him," Victorian Premier Daniel Andrews said on Saturday.

"To us, he was the greatest - but to his family, he was so much more."

Hollywood star Russell Crowe tweeted he was having a hard time accepting the news.

"Genius player. Grand company. Loyal friend," he tweeted.

Rolling Stones frontman and passionate cricket fan Mick Jagger tweeted: "He brought such joy to the game and was the greatest spin bowler ever".

Prime Minister Scott Morrison offered his condolences to the Warne family in a written statement.

"Shane was his own man, following his own path," Mr Morrison said.

With agencies.

© AAP 2022

Shane Warne suffered chest pains before he travelled to Thailand for a holiday, where the cricketing great died from a suspected heart attack on Friday, Thai police say.

"He had asthma and had seen a doctor about his heart," Yuttana Sirisombat, superintendent at the Bo Phut police station, has told reporters.

"We learned from his family that he had experienced chest pains when he was back home in his country," Yuttana said, when asked about any prior illnesses.

The death of the 52-year-old 145-Test veteran on the island of Koh Samui is not being treated as suspicious.

Warne was staying in a private villa with three mates, one of whom performed CPR after finding him unresponsive when he did not show up for dinner.

He was taken by ambulance to Thai International Hospital and later his body was transferred to Ko Samui Hospital.

Warne's manager James Erskine has told Fox Cricket Warne was only three days into a planned three-month holiday and alone watching cricket when he fell ill.

His friend Andrew Neophitou, who was among the group staying in the same villa, went to check on him.

"They were going to have a drink ... or go and meet someone to go out and have a drink at 5 pm and Neo knocked on his door at 5.15 pm because Warnie is always on time," Erskine said.

"He went in there ... and then realised something was wrong. And he turned him over and gave him CPR and mouth-to-mouth, which lasted about 20 minutes and then the ambulance came."

Australia's ambassador to Thailand Allan McKinnon spoke to reporters after meeting with Thai police late on Saturday.

"(The) police station and the hospital in Ko Samui are facilitating the process of getting Shane Warne back to Australia as quickly as possible," he said.

"They have been very compassionate, very efficient and very understanding."

Sirisombat says the plan is to move Warne's body for an autopsy in the main state hospital in Surat Thani province on Sunday.

A forensic team has inspected the villa where Warne was found and his friends have given statements to police as part of standard procedure.

Erskine says Warne's family is understandably devastated.

"(His) children are in complete shock," he told the Nine Network's Weekend Today.

Meanwhile tributes continue to pour in from all walks of life, with newspapers, celebrities, politicians and adoring fans lining up to recall their memories of the legendary legspinner.

Others left flowers, meat pies, beers and cigarettes at his statue outside the MCG throughout Saturday, where the southern stand will be renamed the S.K. Warne Stand in his honour.

The Victorian and federal governments have each offered a state funeral to his family, which includes Warne's daughters Brooke, 24, and Summer, 20, and 22-year-old son Jackson.

"Nobody who saw Shane Warne play will ever forget him," Victorian Premier Daniel Andrews said on Saturday.

"To us, he was the greatest - but to his family, he was so much more."

Hollywood star Russell Crowe tweeted he was having a hard time accepting the news.

"Genius player. Grand company. Loyal friend," he tweeted.

Rolling Stones frontman and passionate cricket fan Mick Jagger tweeted: "He brought such joy to the game and was the greatest spin bowler ever".

Prime Minister Scott Morrison offered his condolences to the Warne family in a written statement.

"Shane was his own man, following his own path," Mr Morrison said.

With agencies.

© AAP 2022

Shane Warne suffered chest pains before he travelled to Thailand for a holiday, where the cricket great died from a suspected heart attack on Friday, Thai police say.

Citing information from his family, police said on Saturday Warne, 52, also had asthma and heart issues, and his death on the island of Koh Samui is not being treated as suspicious.

Warne was staying in a private villa with three friends, one of whom performed CPR after finding him unresponsive when he did not show up for dinner.

His body is to be transferred to the Thai mainland for an autopsy on Sunday.

Newspapers, celebrities, politicians and adoring fans lined up to recall their memories of the legendary legspinner after the shock news of his death.

Others left flowers, meat pies, beers and cigarettes at his statue outside the MCG, where the southern stand will be renamed the S.K. Warne Stand in his honour.

The Victorian and federal governments have both offered a state funeral to his family, which includes Warne's daughters Brooke, 24, and Summer, 20, as well as 22-year-old son Jackson.

"Nobody who saw Shane Warne play will ever forget him," Victorian Premier Daniel Andrews said on Saturday.

"To us, he was the greatest - but to his family, he was so much more."

Hollywood star Russell Crowe tweeted he was having a hard time accepting the news.

"Genius player. Grand company. Loyal friend," he tweeted.

Rolling Stones frontman and passionate cricket fan Mick Jagger tweeted: "He brought such joy to the game and was the greatest spin bowler ever".

Prime Minister Scott Morrison offered his condolences to the Warne family in a written statement.

"Shane was his own man, following his own path," Mr Morrison said.

Australian officials arrived in Thailand on Saturday to assist Thai authorities and help arrange the repatriation process.

© AAP 2022