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New research on the Omicron variant unpicked by James Gallagher, BBC health and science correspondent. Plus many people listen to music for hours every day, and often near bedtime in the hope of a good night\\u2019s sleep. But if you can\\u2019t get the tune out of your head could this be counter-productive? In new research, neuropsychologist Michael Scullin of Baylor University has looked at the rarely studied effect of these so called earworms. And could fish oils one day be used to treat some forms of severe depression? Claudia hears from Alessandra Borsini of King\\u2019s College London who has been examining the impact of omega-3 polyunsaturated fatty acids in the lab and has followed up with a promising trial on severely depressed patients. Plus James Gallagher explains that despite there being no evidence 5G mobile networks are harmful many types of necklaces and accessories claiming to "protect" people from 5G have hit the market. Now the Dutch authority for nuclear safety and radiation protection warns that with long term use such anti-5G products themselves could be harmful due to radioactive concerns.

Presenter: Claudia Hammond\\nProducer: Erika Wright

(Picture: Omicron variant (B.1.1.529): Immunofluorescence staining of uninfected and infected Vero E6 cells. Photo credit: Microbiology HKU/BSIP/Universal Images Group via Getty Images.)