After the birth of her son during lockdown, the Welsh actor was flooded by disturbing thoughts she couldn’t shake, a plunge into darkness and isolation. She discusses how it changed her and what helped her recover

Kimberley Nixon’s memoir, She Seems Fine to Me, is out on 7 May, and she’s quite terrified. This isn’t an author worried by sales figures or reviews. Nixon’s book is an up-close-and-personal account of perinatal OCD. It tells of the dark, disturbing thoughts that taunted and haunted her after the birth of her son: her racing mind, relentless rumination, the Technicolor horror stories that played inside her head, always centred on harms to her baby. The book holds nothing back.

“Is it really brave or is it really stupid?” says Nixon. “In my head, I’ve written a book about what a horrible person I was and put it out in the world – and I have to keep reminding myself that’s not it. I’ve written a book about a mental health condition and trying to fight it.”

Each generation has a different view on when old age gets under way, but if my kids’ generation is correct, time is about to catch up with me ...

For boomers, old age begins at 75, according to a new survey, while gen X considers the start date of decrepitude to be 70, and millennials are a little stricter, at 63. These are all reasonable positions, and then you get to gen Z, who know nothing about anything: they say it’s 53.

By coincidence, I’d been thinking about this anyway at the weekend, after dancing so exuberantly I ripped my own clothes. I didn’t think that was ideal: it did raise concerns about what I must have looked like in the moment. But I figured as long as I stopped doing it before I got old, it was probably fine – and thought (being gen X) that gave me about 17 years. It turns out that as far as the youngsters are concerned, I have just over three months.

The track prodigy made it to world championships at 17 and joined Nike’s Oregon Project. At 29, Cain is detailing the hellish years under coach Alberto Salazar in her new memoir

“As someone who has lost touch with reality, I like to hold a firm grasp on it now,” Mary Cain says while we walk through a palm-tree spotted campus in California.

She’s telling me why she insisted she write her own memoir, This is Not About Running, without ceding the narrative to a ghostwriter, as happens with many athletes. “My story is so complicated … there are so many bad actors that I think it forces the reader to embrace nuance, and I don’t think you see that very often.”

A new documentary travels around the world to identify the roots of ultra-mania – the fan movement that’s part progressive and sometimes criminal

‘Ultras” – hardcore football fans renowned for their stunning stadium displays and gang-like loyalty – were once a subculture confined to Italian stadiums. But since the late 1960s the movement has spread through global football terraces and become a more elevated cultural obsession.

Books on the subject include my own Ultra and James Montague’s 1312 (the numbers stand for ACAB, an abbreviation of “all cops are bastards”). Netflix has not only commissioned one film, Ultras, about a Neapolitan gang, but also three longer series: Puerta 7 (based in Argentina), Furioza and The Hooligan (both set in Poland).

A new two-acre garden in memory of Queen Elizabeth II has opened to the public, providing a refuge for the city’s flora and fauna in Regent’s Park. From a wildflower meadow to swift boxes in a water tower, the space has been designed as an oasis of biodiversity

Artists and writers argue scrappy nature of self-published booklets is incompatible with artificial intelligence

The self-published zine has long been central to cultural revolutions, from queer activism to Black feminism and the riot grrrl punk movement, producing titles such as Sniffin’ Glue and Sweet-Thang along the way. But now the traditionally analogue art form faces a new shift: artificial intelligence.

AI may seem incompatible with the these cult DIY booklets, but some creatives, designers and artists have begun to experiment with the technology, causing alarm in parts of the underground publishing world. It has been their Dylan-goes-electric moment.

PM’s former chief of staff tells committee he did not think Mandelson gave him ‘full truth’ about Epstein links

Q: Was there pressure on you to approve Mandelson’s vetting?

This is a reference to the claim that Keir Starmer misled MPs last week when he talked about no pressure being placed on the Foreign Office.

One is during my tenure. I was not aware of any pressure on the substance of the Mandelson DV case.

Question two was there pressure? Absolutely. And I’ve described it. And I also have seen what the Foreign Office said to you last night. [See 8.50am.]

I didn’t receive any direct calls from the chief of staff during my time as permanent undersecretary. So there was no call at all. My interactions were always when others were present in a general meeting, there weren’t very many of those either …

I’ve really racked my brains and I cannot recall Morgan McSweeney swearing in a meeting at me, or indeed just in general. So I don’t see any substance in that part of it and I think it’s important I say that this morning, given how many people have come to think that might be true.

Monarch to allude to recent strains in special relationship in speech to both houses during four-day state visit

King Charles is expected to allude to recent strains between the UK and US in a rare address by a monarch to the US Congress as he will underline that “time and again our two countries have always found ways to come together”.

The king’s remarks in a speech to both houses on Tuesday will come after Donald Trump has threatened to tear up a trade deal signed by the UK and US, mocked the Royal Navy and insulted the UK prime minister.

Rabbis Charley Baginsky and Josh Levy say criticising Israeli government is not disloyalty but a Jewish obligation

The UK’s most senior progressive rabbis have warned that Israel’s current political direction risks becoming “incompatible with Jewish values”, while insisting that criticism of the country’s government is “a Jewish obligation” rather than an act of disloyalty.

Rabbi Charley Baginsky and Rabbi Josh Levy, co-leads of Progressive Judaism – the newly formed movement representing around a third of synagogues in the UK – said Israel’s trajectory could pose an “existential threat” not just to the country itself but to Judaism.

FTSE 250 firms Paragon and OSB Group, owner of Kent Reliance and Precise Mortgages, slide on London Stock Exchange

• Rachel Reeves considering rent freeze to limit Iran war fallout

• Business live – latest updates

Shares in some of the UK’s biggest buy-to-let lenders such as Paragon and One Savings Bank have fallen after it emerged that the chancellor may make private landlords commit to a one-year rent freeze.

In an effort to protect households from rising living costs as a result of the Iran war, Rachel Reeves is considering whether to ban landlords in England from increasing rents for a limited period of time, the Guardian revealed on Monday night.