Multivitamins offer the promise of guiding us to ultimate health. But are all vitamins created equal, and is there proof behind the wellness claims? Reged Ahmad talks with science writer Donna Lu about the multi-promises of multivitamins

The Guardian’s Jerusalem correspondent Bethan McKernan explains the pact reached between Israel and Hamas to halt fighting You can support the Guardian at theguardian.com/fullstorysupport

The federal government is promising $3bn to improve the national broadband network – but is this enough to fix Australia’s internet? Reged Ahmad talks to reporter Josh Taylor about why the NBN remains expensive and slow compared with many other countries’ internet and what can be done to make it better

Gabrielle Canon reports from Los Angeles on the wildfires destroying homes and communities You can support the Guardian at theguardian.com/fullstorysupport

When 26-year-old Hady Habib stepped out on to court 13 at Melbourne Park on Sunday, he was already making history even before defeating his opponent. Later today, he will face the world No 14, Ugo Humbert, in the second round of the Australian Open. Nour Haydar speaks to the trailblazing tennis player about how his success has been a source of celebration for Lebanese Australians and his family at home, who have endured months of war and devastation

He’s not even US president yet, but Donald Trump is already dominating the headlines – from his scot-free sentencing to his talk of invading Greenland. His term is set to be full of surprises, but is it what his supporters voted for? Reged Ahmad talks to Washington DC bureau chief David Smith about the noisy lead-up to Trump’s second go, and what to expect in the first days of his rule

There is still no date for the federal election but Anthony Albanese has switched to campaign mode, hitting electorates across Queensland, the Northern Territory and Western Australia all in one week. With the prime minister’s approval rating sliding, a potential interest-rate cut on the horizon and Donald Trump reclaiming the keys to the White House, Nour Haydar talks to political reporter Dan Jervis-Bardy about the events that could shape federal politics this year

How does a hugely successful entrepreneur and parent find the energy, creativity and time to write a novel? Zoë Foster Blake tells Bridie Jabour how she makes the most of 90 minutes and where she starts You can support the Guardian at theguardian.com/fullstorysupport

It’s obvious there are many benefits to open water swimming, but knowing how to prepare and where to begin can feel overwhelming. Founder of the Coogee Bay Cuttlefish swim club Alice Marklew takes Matilda Boseley through practical tips to jumping (safely) into the big blue You can support the Guardian at theguardian.com/fullstorysupport

For more than 20 years Dr Melissa Kang helped Australian teenagers navigate puberty with her much-loved column Dolly Doctor. Kang speaks to Reged Ahmad about why it’s more important than ever to have that conversation You can support the Guardian at theguardian.com/fullstorysupport