Summary
Some 20 million cases of cancer were diagnosed worldwide in 2022, up from 18 million in 2020. The WHO's International Agency for Research on Cancer predicts that number would rise by 77% to 35 million by 2050. And in a disturbing worldwide trend, early-onset cancers - diagnosed in people under 50 - have increased globally by 79%. As the demographics of US cancer patients increasingly shift from older individuals to middle-aged people, evidence suggests that risk factors in early life and young adulthood, including diet, lifestyle, obesity, environment and the microbiome, all play a role in this shift.
CNA Correspondent takes a closer look at the various factors behind the trend, and finds out what cancer researchers are doing to understand this growing phenomenon. And it heads to one of the world's so-called Blue Zones to see what lessons can be learned from societies where many residents live to advanced, and healthy, old age.
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