Expert comment from Dr Amanda Shea, who holds a PhD in molecular biology and has contributed to ovarian cancer research and is the fractional chief science officer at period and cycle tracker app Clue.

This January, a menstrual leave petition asking the government to “introduce statutory paid menstrual leave of up to three days per month for people with conditions such as endometriosis and adenomyosis” was launched.

It has since passed 100,000 signatures, and so has met the threshold for parliamentary debate.

The topic will be debated in Westminster Hall. Menstrual leave already exists in countries like Spain, Portugal, Taiwan, Zambia, and Vietnam.

But in, e.g., Spain, the law has “hardly been used”, The Guardian reports.

HuffPost UK spoke to Dr Amanda Shea, who holds a PhD in molecular biology and has contributed to ovarian cancer research, about how to make laws like these more effective.

Menstrual leave policies like those introduced in Spain and Portugal “appear progressive” and “mark an important step in acknowledging menstrual and reproductive health at policy level,” Dr Shea said.

“Yet early reports suggest uptake has been low, likely due at least in part to persistent stigma, fears around job security, and concerns around being seen as unreliable or unproductive.

“This raises the question: are these policies truly helpful, or are they symbolic gestures that signal progressiveness without addressing the deeper cultural changes that are needed?”

That’s not to say that paid menstrual leave couldn’t be beneficial. As Dr Shea told us, “Menstrual pain and related symptoms can be genuinely debilitating and they deserve to be taken seriously. For some, menstrual symptoms can significantly affect their ability to work, and time off may be necessary, just as it would be for any other health condition”.

Her workplace, Clue, already uses paid menstrual leave. It’s not about discouraging laws which could make the lives of those suffering from painful conditions easier.

Sarah Ottawa, the chief people officer at the company, said that the policy has gone down well with employees, adding that her team “were very intentional about making the policy clear and stigma-free”.

But, Dr Shea said, more broadly. “The reality is that culture needs to evolve to match the intent of the policy. Many people still don’t feel safe disclosing menstrual pain, let alone using menstrual-specific leave. Without strong protections against discrimination, clear leadership support, and more open conversations about menstruation, these policies risk falling short.

“Importantly, supporting menstrual and reproductive health will require more than a single policy. It calls for systemic change that includes better health education, more research into female-prevalent conditions and treatment options, and improved access to quality care.”

Then, there’s the fact that paid period leave would only cover those with diagnosed conditions. We know that women’s health issues remain disproportionately ignored and undiagnosed.

“Workplace policies are just one part of the bigger picture, and when they focus solely on leave, or apply only to a narrow set of symptoms or diagnoses, they risk excluding many people, reinforcing that pain should be endured in private, and missing the wider challenges people face in managing their health.”

Take, for instance, PMDD, which can leave people in serious distress and is period-related but often happens days before menses begins. “People with autoimmune diseases like lupus or rheumatoid arthritis, digestive conditions like IBS, or menstrual migraines often experience symptom flare-ups during certain phases of the cycle,” the expert added.

“It’s also important to dispel the myth that all menstruators need leave. Most don’t experience severe symptoms, and policies should reflect that menstrual experiences vary widely. Often, more flexible and inclusive solutions – like the ability to work from home, adjust hours, or take time for medical appointments – can be more effective.”

Those needs often extend beyond periods to fertility treatments, miscarriage recovery, postpartum support, and perimenopause care, too.

As we’ve said, paid menstrual leave can be a great step forward.

But to make it most effective, Clue’s reproductive health specialist, Eve Lepage, said: “A thoughtful menstrual leave policy would be one that recognises menstruation as a spectrum of experiences, from regular, manageable cycles to severely debilitating symptoms due to conditions like endometriosis, adenomyosis, or PMDD.

“It would offer flexible, non-discriminatory support.”

• Leave it as an option, not a rule. People should be able to take time off when they need it, but it shouldn’t be assumed that everyone will or should.
• No requirement for proof or disclosure. Many people never receive formal diagnoses, often because of barriers in the healthcare system. Requiring a doctor’s note just to access support can leave people behind.
• Integration into broader wellness support. Menstrual leave should exist alongside things like flexible hours, remote work options, mental health days, and reproductive health leave, so it reflects the full range of cycle-related needs.
• Education to reduce stigma. Workplace education should accompany the policy to challenge outdated views of menstruation as shameful or disruptive.
• Inclusive language and design. Not all people who menstruate identify as women, and policies should reflect that.

Gen Zers and millennials may technically be neighbors on the generational timeline, but culturally, they sometimes feel a universe apart.

From communication styles to news consumption to how they show up on social media, the two generations often approach the world in very different ways. And those differences can sometimes cause friction.

We asked millennials to share the Gen Z behaviours that stress them out. Of course, habits vary from person to person, but certain patterns and tendencies still emerge.

“I am a big fan of normalising mental health conversations and people having access to the help they need. In fact, I love that about Gen Z. But with access comes misusing and misinterpreting words, like ‘triggered’ or ‘narcissism,’ as well as a rise in self-diagnosis. As a psychiatrist, I regularly see people who think they have a condition because TikTok told them they do. I appreciate that they show up in my office and ask about it to learn more, because not everyone does that step, and that TikTok even informed them about a diagnosis that resonated to begin with ― but it can sometimes lead to hard conversations when I say, for example, that not all trouble concentrating is ADHD.” ― Dr. Jessi Gold, psychiatrist and chief wellness officer at the University of Tennessee System

“I have noticed that Gen Z struggles with basic in-person social skills and communication. They are digital natives and can struggle to translate those skills to in-person interactions. The term ‘Gen Z stare’ exists for a reason; it’s real.” ― political and news commentator Millennial Mia

“Three words: choreography in public. Doing a full routine on the top of the Empire State Building? Airport acrobats? All of it makes me feel so uncomfortable! Also, has anyone else noticed an uptick in people crossing the street whenever they feel like it? I see people fully look up at a green light, then look me in the eyes sitting in my car and wave and then walk. Is there no fear?” ― Balsham

“I think that Gen Z can turn even a stressful or traumatic moment into a funny post on TikTok and IG. Us Millennials do that sometimes as well, but Gen Z has a very specific way about it. Their house could be burning down and they’d post on social media ‘first house fire kinda nervous.’ They are so unserious and I find that very entertaining, impressive and stressful all at once haha. (I’m obligated as a millennial to end every sentence with a haha or lol).” ― lifestyle content creator Shaunie Begley

“Social media makes so many of my patients feel like they have to tell their entire life story to be considered ‘authentic’ and to get likes and follows. Sometimes that means they trauma dump publicly, instead of trying it out with a therapist and psychiatrist to process it privately first. Telling your story isn’t as easy as just saying it out loud, especially when public confessions often lead others to tell you their stories, too, or you open yourself up to criticism and trolls. I love that they want to talk about all of these hard topics and break down the stigma of the silence of them, but I just wish they just shared when they were emotionally ready, and not because they thought they were supposed to!” ― Gold

“They love to speak about subjects that they have zero experience in and their information comes from entertainment. They quote TikToks and Reels not understanding that most of the information is clickbait and not backed in facts or actual research.” ― Greivy, lifestyle influencer

“Growing up, my generation got called ‘lazy’ a lot by the generations before us. Now, even the generation after us seems to enjoy actively critiquing millennials, especially online! All through TikTok I’ve learned that, according to Gen Z, we aren’t parting our hair ‘correctly,’ we rely too heavily on the French tuck and most recently I saw a video calling out the ‘millennial smile.’ I’ll be completely honest, I did start parting my hair down the middle a few years ago in response! But as I get older, I care less and simply find it amusing. The amount of time Gen Z seems to spend deconstructing millennial characteristics feels… unique.” ― Nausheen Farishta, travel expert and author

“My biggest pet peeve is when Gen Zers criticise or make fun of our ‘dated’ clothing. I don’t remember our generation doing that to Gen Xers when we were in our 20s. And I’m not talking about looking back and laughing at the styles in old photos ― I’m talking about real-time comments in 2026, like pointing out when someone wears ankle socks or still rocks skinny jeans. Honestly, maybe we just don’t want to spend $100 on new jeans every year to keep up with the latest trends. For a generation that claims to care about sustainability, secondhand shopping and reducing clothing waste, it feels a bit hypocritical to judge others for not constantly updating their wardrobes.” ― Nadine Sykora, travel vlogger

“One thing I genuinely admire about Gen Z is how intentional they are about work-life balance. Millennials definitely started pushing that conversation, but Gen Z is actually enforcing it. They’re clear about their boundaries, what they want, and what they’re not willing to compromise on ― and I respect that. On the flip side, if I’m being honest, that same confidence can sometimes come across as entitlement. There can be an expectation of flexibility, growth or reward without always putting in the same level of time or grind that previous generations were used to. It’s a shift ― and not always a bad one ― but definitely noticeable. Overall, though, I think Gen Z is challenging norms in a way that’s forcing everyone to rethink how we work, date, and show up in the world ― which is pretty powerful.” ― Erin C., content creator

“They can be easily be discouraged and distracted when working on anything that’s not their personal interest! Blaming others for their lack of skill and experience instead of seeing it as a learning curve. And they also tend to take everything personal ‘why bother if it doesn’t serve me’ mentality it drives me crazy!” ― Greivy

“You’d think what stresses me out most is the recycling of 2000s fashion ― low-rise jeans, capris, platform sandals ― but it’s actually the casual posting with minimal curation. As millennials, perfectionism, overthinking and curation are basically in our DNA. The 2010 era was all about aesthetically cohesive feeds and matching Ludwig filters. I’ve gotten better at posting on the fly, but I genuinely admire Gen Z’s ability to post whatever they want, whenever they want.” ― Kate Steinberg, social media personality

“As Gen Z establishes itself in the workplace, there’s a learning curve on all sides. As the first generation of ‘digital natives’, the way Gen Z communicates (or doesn’t) at work could prove not only annoying but also confusing to their colleagues. I’ve been brought in to lead workshops for Gen Z in corporate settings on what effective communication and executive presence look like on the road to success, while we also explore ways to stay true to themselves along the way.” ― Farishta

“Their communication style can be a bit confusing for millennials. They use completely different emojis, memes and online shorthand, which sometimes makes it hard to understand what they mean right away.” ― Valerie Melnikova, comedian

“I’d say their relationship with social media is… a lot. And that’s coming from someone in the influencer space. There’s a level of constant immersion that can feel overwhelming at times ― like, log off and go touch grass for a second.” ― Erin C.

“I feel a deep sadness for them that they have no idea what life was like before social media when you just lived life for yourself and the moment and didn’t need to have a discourse with friends about what to post or who is watching your stories. I don’t think a single Gen Zer has ever been to a beach without posting a picture of their knees. Never has a glass of rosé been drank that wasn’t photographed. An Aperol spritz in Italy has never gone unstoried. There’s something about this need for attention that is deeply stressful” ― Balsham

A cabinet minister has attracted online backlash after claiming Keir Starmer is a “man of honesty and integrity” amid the fallout of Peter Mandelson.

The prime minister’s judgement – and political future – is under question after it emerged this week that his pick to be the UK’s ambassador to the US failed security vetting, but still got the top job anyway.

Starmer insists that the Foreign Office kept him in the dark about the security risks around Mandelson.

Technology secretary Liz Kendall furiously defended the prime minister on Sky News on Sunday, telling presenter Trevor Phillips she had “100%” confidence in the prime minister, despite this scandal.

“He is a man of guts and strength and courage,” she said. “He does take responsibility.

“He is a man, when big decisions are facing the country, is making the right calls, on getting a grip of our public finances, on investing in our defence and NHS, of not getting involved in the war with no clear objective and no clear exit plan, who has focused on things that have mattered to me my entire life – getting kids out of poverty and tackling violence against women and girls.

“That is why I support the prime minister, because on the big judgements facing the country, he has made the right calls, no matter what pressure is put on him.”

On the Mandelson appointment, she continued to describe the prime minister as an “honest man” who acknowledges it was a “mistake” to promote the ex-Labour peer.

“He removed Peter Mandelson and I think that he is a man of honesty and integrity,” Kendall said.

“And you know what, Trevor, tomorrow in the House of Commons, he will face all of these issues and questions. He will lay all the facts before parliament.”

Kendall also claimed Starmer would not have appointed Mandelson if he knew he failed the security vetting.

She sent a warning to political opponents who might be trying to topple the prime minister, saying: “Any politician that focuses more on their future and their job, not people’s future sand their jobs, will lose the public support. That is why I back Keir Starmer.”

However, her comments sparked a strong reaction on X, where many online critics strongly disagreed with her support for Starmer…

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You might have heard of “chronotypes”, or a person’s natural body clock that determines whether they’re a night owl or an early bird.

That’s usually mentioned in relation to sleep. But a new randomised controlled trial suggests that it might impact our peak workout time, too.

Published in the BMJ journal OpenHeart, the research found that, “Aligning exercise timing with individual chronotype significantly enhances cardiometabolic and sleep-related outcomes in at-risk adults.”

What did the research show?

The scientists conducted a 12-week trial in which 150 sedentary participants, aged 40-60, had their chronotype assessed with a questionnaire.

The participants were split into groups, including a chronotype-aligned exercise (CAE) group, who worked out when best suited their chronotype, and a chronotype-misaligned exercise (CME) group, who exercised outside of their natural “best” time.

Participants completed five 40-minute moderate-intensity sessions a week for the duration of the trial. Researchers measured their blood pressure, heart rate variability, blood sugar, LDL cholesterol levels, sleep quality, and oxyegn use.

The reduction in blood pressure in the CAE group was “substantial and significantly greater than in the CME group,” the paper reads.

“Aligning exercise timing with individual chronotype significantly enhances cardiometabolic and sleep-related outcomes in at-risk adults.”

You likely already know whether you’re a night owl (late chronotype) or an early bird (early chronotype).

“Early chronotypes benefited more from morning exercise, while late chronotypes showed better results with evening sessions,” the study reads.

However, this research noted that all exercise, even that which is done outside of your chronotype, reduces the risk of heart health issues.

Dr Jeffrey Kelu, a research associate at King’s College London, told the Science Media Centre: “This is a useful and important study because it brings personalised medicine into a very practical context by asking not only what intervention to prescribe, but also when to prescribe it”.

They added, “Importantly, even the misaligned group improved, so the broader public-health message remains that any exercise is worthwhile, while timing it to biological preference may offer an additional benefit.”

Angela Rayner had a secret meeting with Andy Burnham on Friday night, according to new reports.

The Sun on Sunday shared photos of the Greater Manchester mayor arriving at the former deputy prime minister’s constituency home in Ashton.

Their summit adds to mounting speculation the two soft-left Labour figures might be considering launching a joint coup.

Their encounter came hours after Keir Starmer furiously defended his premiership amid fresh developments in the Peter Mandelson scandal.

It was revealed by the Guardian this week that the ex-Labour peer failed security vetting, but still secured the top job as the UK’s ambassador to the US.

Starmer has since insisted that he was not told Mandelson had failed and only found out on Tuesday night.

He then sacked the chief of the Foreign Office, Olly Robbins, on Thursday night.

As scrutiny over Starmer’s judgement grows once again, technology secretary Liz Kendall sent a message to the PM’s potential opponents this morning.

She said: “Any politician that focuses more on their future and their job, not people’s future sand their jobs, will lose the public support. That is why I back Keir Starmer.”

Burnham was blocked by Labour’s executive body from running for parliament earlier this year amid fears he would try to overthrow Starmer once safely set up with a seat in the Commons.

Rayner is allegedly also considering a run at the top job, but may still be hampered from any power grab by the ongoing HMRC investigation into her tax affairs.

She had to step down from the cabinet last year after underpaying on stamp duty when buying an £800,000 property.

Labour is expected to endure major losses at the elections in May, when Holyrood and the Senedd are up for re-election along with hundreds of local authorities in England.

Insiders have told HuffPost UK any leadership challenge to Starmer will likely come after the elections so any successor can avoid taking responsibility for the bloodbath.

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Donald Trump has threatened to strike Iranian infrastructure after accusing Tehran of breaching their ceasefire agreement.

The US president claimed Iran fired bullets in the Strait of Hormuz at a “French ship and a freighter from the United Kingdom”.

In a furious post on TruthSocial, the US president said there was going to be “no more Mr Nice Guy” – even though America “loses nothing” over the ongoing chaos.

He also called Iran’s decision to close the strait “strange”, claiming the US blockade had already closed it.

He said Iran should take the “very fair and reasonable” deal the US negotiators put forward on Monday while meeting with their Iranian counterparts in Pakistan – or the US “is going to knock out every single Power Plant, and every single Bridge, in Iran.”

Trump claimed his military would “come down fast, they’ll come down easy”, adding: ” IT’S TIME FOR THE IRAN KILLING MACHINE TO END!”

Tehran has also accused the US of breaching the ceasefire deal by imposing a naval blockade on Iranian ports.

No traffic is currently moving through the major shipping lane, the Strait of Hormuz, due to the conflict in the Middle East.

Tehran retaliated to the strikes from the US and Israel at the end of February by effectively closing the Strait by targeting any ships which pass through it.

That triggered a global economic shock because the waterway transports around a fifth of the world’s oil and liquefied natural gas, with around 140 ships passing through in either direction.

After frantic negotiations, Iran claimed the waterway was reopened for commercial vessels on Friday – but only if ships go through an inspection by the Islamic Revolutionary Guard Corps Navy, and in some cases, pay a toll.

Iran then seemed to close the waterway again on Saturday, saying it will remain shut until the US ends its blockade on Iranian ports.

Trump’s full post reads:

“Iran decided to fire bullets yesterday in the Strait of Hormuz — A Total Violation of our Ceasefire Agreement! Many of them were aimed at a French Ship, and a Freighter from the United Kingdom. That wasn’t nice, was it? My Representatives are going to Islamabad, Pakistan — They will be there tomorrow evening, for Negotiations. Iran recently announced that they were closing the Strait, which is strange, because our BLOCKADE has already closed it. They’re helping us without knowing, and they are the ones that lose with the closed passage, $500 Million Dollars a day! The United States loses nothing. In fact, many Ships are headed, right now, to the U.S., Texas, Louisiana, and Alaska, to load up, compliments of the IRGC, always wanting to be “the tough guy!” We’re offering a very fair and reasonable DEAL, and I hope they take it because, if they don’t, the United States is going to knock out every single Power Plant, and every single Bridge, in Iran. NO MORE MR. NICE GUY! They’ll come down fast, they’ll come down easy and, if they don’t take the DEAL, it will be my Honor to do what has to be done, which should have been done to Iran, by other Presidents, for the last 47 years. IT’S TIME FOR THE IRAN KILLING MACHINE TO END!

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A Labour peer has called for Keir Starmer to resign over the Peter Mandelson scandal.

Maurice Glasman has become the most senior figure within the party to urge the prime minister to resign, claiming he “cannot conceivably continue” in the job.

It comes after it emerged Mandelson – Starmer’s pick to be the UK’s ambassador to the US – failed security vetting last year.

The Foreign Office then overrode the security advice not to hire the ex-Labour peer and gave Mandelson the plum job in Washington.

Mandelson was sacked over his long-running friendship with convicted paedophile last September, but the decision to hire him continues to haunt Starmer.

The PM insists he was not aware Mandelson failed the vetting process and is blaming Whitehall for keeping him in the dark.

But questions over Starmer’s judgement continue to grow and there is speculation other Labour figures – Angela Rayner and Andy Burnham – could be looking to overthrow him.

Glasman told the Telegraph: “He cannot conceivably continue as a credible prime minister any longer. And that’s all because he cannot say ‘I made a mistake, I’m sorry’.

“If you can’t own your mistakes, you can’t move.

“All he needed to say was ‘we made an error’.

“But he’s completely stuck in saying he hasn’t done anything wrong, so this can’t go away.”

Glasman, known for championing the Blue Labour movement, also warned that his party is facing a bloodbath in the May elections when voters select their candidates for Holyrood, the Senedd and hundreds of local authority seats across England.

He said: “May 7 is going to be another debacle. I can’t see how he [Starmer] carries on after the May elections.

“He could limp on to the summer but the point is we’re doing all this while there’s a war in Iran, there’s a war in Ukraine and where is the political leadership?”

Technology secretary Liz Kendall publicly defended Starmer amid this increase in pressure on Sunday morning.

she told Sky News: “Keir Starmer is my favourite to be the prime minister, to take us into the next election.

“Let me tell you right now, with the cost of living crisis that people are facing and with the world so uncertain, and that’s deeply frightening to people, any politician who focuses more on their future and their job, not on people’s futures and their jobs, will lose the public support. That is why I back Keir Starmer.”

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