Hookah more toxic than other forms of smoking tobacco: Study
New York, Aug 13: While the popularity of hookah (tobacco pipe) has increased in recent years, researchers say it may be more dangerous than other forms of smoking tobacco.
Using a custom-built testing device, the researchers analysed emissions during a typical hookah session and found that one draw from a pipe contained as many noxious substances as a cigarette.
Hookah mainstream smoke, which is directly inhaled, has many toxic and harmful chemicals, like nicotine that can lead to tobacco addiction, irritating carbonyl compounds, and benzine, a known carcinogen,” said study lead author Veronique Perraud from University of California.
“Due to the greater volume inhaled in every puff and the longer duration of a smoking session, the hookah often delivers a higher dose of those chemicals to the smoker,” Perraud said.
It also produced large quantity of carbon monoxide, mainly from the burning of charcoal to heat the tobacco or herbal mixture in its bowl. The study, published in journal Aerosol Science and Technology, also referred to several cases of carbon monoxide intoxication.
In addition to testing ordinary tobacco, the group also studied a nicotine-free herbal mixture, marketed as a healthier alternative, and discovered that it produced even higher levels of toxic gases.
The study is the first to characterise ultra-fine particles (with a diameter smaller than 100 nanometers) in the inhaled smoke.
The researchers measured the chemical composition of gases and solids emitted during a hookah session in real time. “Through our technique of testing emissions in the beginning, midpoint and end of a smoking session, we were able to show that a smoker is exposed to a higher quantity of ultra-fine particles during the first 10 minutes compared with the rest of the session,” she said.
According to the study, these miniscule particles can pose significant health risks by making their way deep into the pulmonary system and by readily crossing the blood-brain barrier.
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Shah Rukh Khan, Kajol unveil ‘DDLJ’ sculpture at London’s Leicester Square
London (PTI): Bollywood stars Shah Rukh Khan and Kajol huddled under an umbrella on a rainy Thursday in London to unveil their bronze likeness from an iconic ‘Dilwale Dulhania Le Jayenge’ scene.
The sculpture of the duo joins Leicester Square’s ‘Scenes in the Square’ trail depicting memorable shots from some of the world’s most famous films, with ‘DDLJ’ marking a Bollywood first and the 30th anniversary of the 1995 box-office hit. It is in this popular London square that SRK as Raj and Kajol as Simran first cross paths unknowingly.
“DDLJ was made with a pure heart. We wanted to tell a story about love, how it can bridge barriers and how the world would be a better place if it had a lot of love in it, and I think this is why 'DDLJ' has had a lasting impact for over 30 years now," said Khan.
“Personally, 'DDLJ' is part of my identity, and it is humbling to see film, and Kajol and me, receiving so much love since it was released,” he said.
He expressed his gratitude to the Heart of London Business Alliance, behind the cinematic trail at Leicester Square, for celebrating ‘DDLJ’ and “immortalising” its lead stars.
“Seeing ‘DDLJ’ become the first Indian film to be honoured in the iconic Scenes in the Square trail is an emotional moment and has brought back so many memories.
"I feel immense pride knowing the film has been embraced around the world, and I want to share this moment with the entire cast and crew of ‘DDLJ’, my friend and director Aditya Chopra and the Yash Raj Films family. This is a moment I will never forget,” added Khan.
Kajol, joined by her daughter Nysa and son Yug, posed with Khan in front of the statue as she braved the rain in a green saree.
“It’s incredible to see ‘Dilwale Dulhania Le Jayenge’ continue to receive so much love, even 30 years later. Watching the statue being unveiled in London felt like reliving a piece of our history - a story that has truly travelled across generations,” said Kajol.
“Seeing it find its rightful place in Leicester Square, a location of such enormous significance to ‘DDLJ’, makes this moment even more special. For the film to be honoured in this way in the UK – the first Indian film to receive such recognition – is something that will forever stay in the hearts and minds of all the ‘DDLJ’ fans across the world,” she said.
Their statue, captured in a dancing pose from the hit song ‘Mehndi Laga Ke Rakhna’, joins the likes of Harry Potter, Bridget Jones, Mary Poppins, and Batman in what is dubbed as an ever-growing celebration of movie magic in a square packed with multiplex cinema screens.
“When ‘Dilwale Dulhania Le Jayenge’, DDLJ, was released 30 years ago, the film became a defining moment for Indian cinema and changed the face of the industry, capturing the hearts of everyone who saw it all over the globe," said Akshaye Widhani, CEO of Yash Raj Films.
“We’re thrilled to be the first Indian film to be represented in ‘Scenes in the Square’. It also marks 30 years of DDLJ, a film that has spread love and joy globally, and shows the cultural impact it has had in UK.
“We are honoured that our superstars and our film are being recognised on the world stage alongside the Hollywood elite, from Gene Kelly to Laurel & Hardy to Harry Potter. This statue will be a great way to express the international appeal of Indian movies and build bridges amongst communities through cinema,” he said.
Since its release in 1995, ‘DDLJ’ has become the longest-running film in Hindi cinema history.
Ros Morgan, Chief Executive at Heart of London Business Alliance, said: “We’re proud to welcome global megastars Shah Rukh Khan and Kajol to our Scenes in the Square trail.
"Dilwale Dulhania Le Jayenge is a cinematic phenomenon that has shaped generations, and London’s first tribute to Indian cinema honours a story whose magic continues to captivate audiences worldwide.”
It is a particularly special year for the film, with a musical based on the romance playing to packed houses at Manchester’s Opera House earlier this year. Aditya Chopra reprised his role as director of the English language stage production, ‘Come Fall In Love – The DDLJ Musical’, which revolved around the love story of Simran and Roger.
The script was a nod to the original as it followed Simran as a young British Indian woman who finds herself engaged to a family friend in India in an arranged marriage. However, the plot thickens when she falls in love with a British man named Roger.
Bade Bade Deshon Mein, Aisi Chhoti Chhoti Baatein Hoti Rehti Hain, Senorita!
— Shah Rukh Khan (@iamsrk) December 4, 2025
Thrilled to unveil the bronze statue of Raj & Simran at London’s Leicester Square today, celebrating 30 years of Dilwale Dulhania Le Jayenge (DDLJ)!
Incredibly delighted that DDLJ is the first Indian… pic.twitter.com/8wjLToBGYc
