A major World Health Organization conference has argued that new technologies, including artificial intelligence, can bring scientific scrutiny to centuries-old healing practices.

The meeting in New Delhi is examining how governments can regulate traditional medicine while using emerging scientific tools to validate safe and effective treatments.

The UN body hopes this push will help make ancestral practices more compatible with modern healthcare systems.

"Traditional medicine is not a thing of the past," said WHO chief Tedros Adhanom Ghebreyesus ahead of the three-day conference which began on Wednesday. "There is a growing demand for traditional medicine across countries, communities, and cultures."

Indian Prime Minister Narendra Modi, in his own message, said the summit would "intensify efforts to harness" the potential of traditional medicine.

Modi is a longtime advocate of yoga and traditional health practices and has backed the WHO Global Centre for Traditional Medicine, launched in 2022 in his home state of Gujarat.

Shyama Kuruvilla, the head of the center, said reliance on traditional remedies was "a global reality", noting that 40 to 90 percent of populations in 90 percent of WHO member states used them.

"With half the world's population lacking access to essential health services, traditional medicine is often the closest – or only – care available for many people," she said.

'Evidence-informed'

The UN agency defines traditional medicines as the accumulated knowledge, skills and practices used over time to maintain health and prevent, diagnose and treat physical and mental illness.

But critics say they lack proven scientific value, while conservationists warn that demand for certain products drives trafficking in endangered wildlife, including tigers, rhinos and pangolins.

"The WHO's role, therefore, is to help countries ensure that, as with any other medicine, traditional medicine is safe, evidence-informed, and equitably integrated in systems," Kuruvilla added.

Kuruvilla, who studied at the London School of Hygiene and Tropical Medicine, and taught global health policy at Boston University, said that "40 percent or more of biomedical Western medicine, pharmaceuticals, derive from natural products".

She cited aspirin drawing on formulations using willow tree bark, contraceptive pills developed from yam plant roots and child cancer treatments based on Madagascar's rosy periwinkle flower.

The WHO also lists the development of the anti-malaria treatment artemisinin as drawing on ancient Chinese medicine texts.

'Frontier science'

"It's a huge, huge opportunity – and industry has realized this," Kuruvilla said.

Rapid technological advancements, including artificial intelligence, had pushed research to a "transformative moment", to apply scientific rigor to traditional remedies.

The WHO is also launching what it calls the world's largest digital repository of research on the subject – a library of 1.6 million scientific records intended to strengthen evidence and improve knowledge-sharing.

Dr Sylvie Briand, WHO's chief scientist, said AI can assist in analysing drug interactions.

"Artificial intelligence, for instance, can screen millions of compounds, helping us understand the complex structure of herbal products and extract relevant constituents to maximize benefit and minimize adverse effects," she told reporters ahead of the conference.

Briand said advanced imaging technologies, including brain scans, were shedding light on how practices such as meditation and acupuncture affect the body.

Kuruvilla said she was excited by the possibilities.

"It is the frontier science that's allowing us to make this bridge... connecting the past and the future", she said.