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Home red-light therapy devices have exploded in popularity as masks, body wraps and mittens promise to reduce wrinkles, redness and even acne. But do the claims stack up, and what other benefits are scientists investigating? Ian Sample hears from his co-host, Madeleine Finlay, and the consultant dermatologist Dr Jonathan Kentley. Kentley explains how the potential benefits of red light were discovered, how it is thought to interact with collagen in our skin, and what science has to say about its impact on our appearanceIs it true that … red light therapy masks prevent wrinkles?Support the Guardian: theguardian.com/sciencepod Continue reading...

• The 70th Eurovision Song Contest is returning, with the event featuring a Grand Final and two preliminary semifinals to determine the winner. • The first semifinal includes 17 countries, such as Sweden, Italy, and Israel, while the second semifinal features 18 nations, including the UK, France, and Australia. • This milestone anniversary celebration draws a massive global audience, prompting a search for official free streaming options to watch the competition online.

PM has shed authority in week that has made him look like an interim leader in office only until replacement foundIt was a minute or so into his BBC interview on Friday morning, after being asked about “moves” to remove Keir Starmer, that Steve Reed ran out of patience. “There is no contest,” he interrupted. “‘Moves’ mean nothing. People need 81 nominations to stand against the prime minister.”The housing secretary, a close ally of Starmer and a founding member of the Labour Together thinktank that catapulted him to power, was right, of course: no one has formally challenged the prime minister, let alone ousted him. Continue reading...

• President Trump expressed optimism that an Iran peace deal is 'looking very good,' signaling potential near-term resolution to the US-Iran conflict that has destabilized financial markets. • Investors are actively weighing the likelihood and terms of a potential Iran truce as a key variable influencing near-term market direction and energy price trajectories. • Geopolitical risk premiums embedded in oil prices and equity valuations could face significant repricing if a comprehensive ceasefire agreement is formally announced.

Triple J signed off with the hip-hop anthem Express Yourself while other radio and TV networks filled the air with BBC broadcasts, re-runs and soothing musicSign up for Guardian Australia’s free weekly media newsletter hereBroadcasters had warned their audiences that the ABC would look “a bit different” on Wednesday – and as the clock struck 11am, they weren’t wrong.As more than 2,000 ABC staff walked off the job for the first time in two decades in protest of their working conditions, the public broadcaster’s news channel switched over to the BBC.Sign up to get Guardian Australia’s weekly media diary as a free newsletter Continue reading...

Beijing seeks to decipher effect of Iran war on US midterms and best way to apply pressure when Trump meets XiThe White House said on Wednesday that China had agreed to postpone Donald Trump’s visit to Beijing, as war in the Middle East rages on, complicating the US president’s position at home and abroad.China has not yet commented on the delay to the highly anticipated trip, in which Trump and the Chinese president, Xi Jinping, will meet in person for the first time since October. Trump previously said he hoped to delay the trip, originally scheduled to run from 31 March to 2 April, for “five or six weeks”. Continue reading...