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Reckon you could get another shave out of your razor? We’ve all done it, wondering how long we can actually use one, as we whip it out again and again. Well, it may not be worth the risk to your health, according to dermatologist and Dove expert, Dr Cristina Soma. So, how often should you change your razor? “More people cling on to their razors for much longer than is advised, and are surprised when we recommend that a razor is changed every five to seven shaves,” says Soma. “The frequency of change also depends on other factors, such as how frequently and how many areas you shave, your hair thickness and type, the quality of your blade, and whether you are good at washing it off afterwards and looking after your blade.” What happens if you don’t? “Most of us own a dull blade full of skin cells, soap and hair debris. In the worst cases, you can also see rust on the blade,” Soma says. “When all this grime accumulates and the blade dulls, you are less likely to get a close, smooth shave, and more likely to cut yourself. Bacteria can accumulate on the blade and have some serious consequences, too. “Using a dull razor blade can result in shaving rash and bumps, ingrown hairs, and inflamed or traumatised skin. More seriously, it can result in cuts and possibly lead to infections,” she explains. Infections “You could get any kind of infection from using an old, unsharp razor. After a while of using the same blade, bacteria starts to grow, which will create irritation on your underarms,” she explains. Shaving armpits, pubic hair and legs may cause real issues. “The most common form of infection would be a bacterial skin infection, with symptoms including redness, swelling, pain or pus. Treatment for this would be an antibiotic ointment. “To really care for your underarms, you need to change your razor frequently, use a shaving cream or gel, shave in the direction of hair growth and rinse the blade thoroughly, then store it in a clean, dry place. “Furthermore, the underarm area is very delicate, so take care in choosing a deodorant that supports the skin barrier,” explains Soma. Resistance and irritation If you feel any resistance when shaving with an old razor, it could cause an issue. “If you can feel your razor tugging at your hair, rather than gliding over it smoothly, it’s likely blunt and will cause skin irritation, razor burn and ingrown hairs,” says Dr Tim Clayton, consultant dermatologist at Pall Mall Medical in Manchester. “Ingrown hairs can lead to bacterial infections, hyperpigmentation and keloids [a type of raised scar] so it’s important to avoid these where possible,” he says. Rust If you see a hint of orange on there, it isn’t worth using. “Tetanus can be spread via a wound caused by a rusty object, but it isn’t the rust that will cause tetanus – it’s the bacteria on the razor. “If you’re concerned about contracting tetanus, make sure you’re up to date with your tetanus vaccinations,” says Clayton. Concerns about cost In a 2021 International Journal of Women’s Dermatology study, women’s four-blade razors were priced 66% higher than men’s, who may be less inclined to shave their bodies. So, if changing your razor is costly, it may be worth considering your relationship with your body hair. “There is no hygiene benefit to shaving your body hair. What you choose to do is completely up to you,” says Soma. “Increasingly, we are seeing more acceptance and diversity in what people do with their hair, and from a medical standpoint, as long as you’re doing it in a hygienic and safe way, carry on.” Read More Charity boss speaks out over ‘traumatic’ encounter with royal aide Ukraine war’s heaviest fight rages in east - follow live Are we working out too hard? How to perk up urban balcony gardens and window boxes Sadiq Khan and Romesh Ranganathan: Women still aren’t equal in politics and comedy

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Lewis Hamilton was the notable exception on a night when numerous F1 drivers voiced their concerns about jet lag and the demanding end of season schedule. This weekend’s inaugural Las Vegas Grand Prix in the heart of Sin City takes place a week prior to the final race of the season in Abu Dhabi, 8,000 miles away. F1 has a record 24-race calendar next season but even with this year totalling 22, Max Verstappen was among a number of drivers critical of the end of the season travel across the world. Yet Hamilton, speaking in the pre-race press conference in Vegas on Wednesday, insisted he feels ‘great’ ahead of the final two races of the season. “I personally haven’t found it [jet lag] a problem,” the seven-time world champion said. “Still manage to keep training and I feel great. I saw some of the drivers complaining about jet lag… but I’ve not found it a problem since I’ve been here. “It is demanding but we know that entering the sport. If it was easy, we wouldn’t do it.” Three-time world champion Verstappen had earlier criticised the schedule as the 2023 season draws to a close. Pierre Gasly, Yuki Tsunoda and Alex Albon were among the other drivers admitting to struggling with their sleep. “It’s already a 12-hour difference but also a completely different timezone because basically we live on a Japanese time schedule [in Vegas] but then almost on a different day,” Verstappen said. “I don’t really get that. That is very tiring. “It’s the end of the season that we have to do this, it doesn’t really make a lot of sense.” Verstappen also lambasted Wednesday’s lavish opening ceremony outside the new $500m pit building. All 20 drivers were introduced via lifts onto a string of podiums, concluding a half-an-hour show which included a drone sequence and a number of musical performances from the likes of Kylie Minogue, John Legend and Steve Aoki. Lando Norris also revealed he was “not a big fan” of the opening ceremony festivities, while Carlos Sainz believes the sport should soon look at the overall race weekend schedule due to it being “overpacked” with commitments for the drivers. Practice at the Las Vegas Strip Circuit starts at 3:30am on Friday morning (GMT). The race starts at 6am on Sunday morning in the UK, which is 10pm on Saturday night in Vegas. Read More ‘You look like a clown’: Max Verstappen derides Las Vegas GP opening ceremony F1 Las Vegas Grand Prix LIVE: Opening ceremony updates and news Lewis Hamilton makes F1 ‘circus’ plea after backlash from Las Vegas locals Celebrities and sponsors descend on Las Vegas as F1 returns to Sin City How Formula 1 cracked America Bernie Ecclestone wouldn’t bet on F1’s future in Las Vegas

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Michelin-starred chef David Chang has poured cold water on the idea that grilling burgers on a barbecue is the optimum way to cook them. The founder of Momofuku Ko, which has two Michelin stars, said that barbecuing patties only serves to turn them into “carbonised crap”, but people keep cooking them like this because of the socialising that is associated with cooking outdoors. On his podcast The Dave Chang Show, the controversial chef suggested that using a griddle to cook burgers is a superior method. Chang, 45, said: “Grills suck for burgers. We have assumed as a culture that in summer, we eat a burger and it’s grilled. “I actually think the grill is a horrible thing for the burger… I think this viewpoint could get me in trouble,” he admitted, but pressed on with his argument against the grill. “The success rate of the griddle is better than the grill, and also there’s no clean up, you have nothing to worry about.” The Korean-American restaurateur continued: “A juicy burger is going to turn into a guaranteed grease fire [on a barbecue], why use it? This whole idea of imparting flavour from the grill, the only flavour that’s being imparted is the carbonised crap that’s on it. “You would need to cook a burger over charcoal for 12 hours to get that smoky flavour. “A backyard burger is an experience that you try to convince yourself is better than it actually is,” he claimed. “It’s the nostalgia, it’s the smells, it’s your friends. But if you actually take it out of the context, it’s not that good.” Chang went on to allege that the close relationship between burgers and grills “is a marketing lie”. “How many places where you think have a good burger, cook it on a grill?” he challenged. However, he did have some praise for barbecued foods. Chang said that grilling corn was “clearly the only champion” and he “can’t think of anything else” that makes corn taste quite as good. Chang has previously shared his opinions on burgers that landed him in trouble. In 2015, he provoked the ire of Australians when he wrote in his blog Lucky Peach: “You know who f***s up burgers more than anyone else in the world. Australians. Australia has no idea what a burger is. “They put a fried egg on their burger. They put canned beetroot on it, like a wedge of it. I am not joking you. This is how they eat their burger.” He also laid waste to the use of wagyu – beef that comes from cattle that is bred in Japan and is highly prized for its marbled fat content – in burgers. In his “burger manifesto”, Chang wrote that it was “the dumbest burger in the world” to use wagyu. “It’s like 70 per cent fat content – it’s disgusting. Would you eat a ground bacon burger? That’s what you’re doing with a wagyu burger,” he said. “Or the idiots that have ‘kobe beef wagyu sliders with a trio of ketchup’ on their menu – that drives me insane.” The chef is also known for speaking candidly about his toxic behaviour while working in kitchens in the past. In his 2020 memoir Eat a Peach, Chang wrote: “When I’m angry, I seethe with such intensity that it can’t simply be emotional. It’s like I’m an animal registering danger.” Hannah Selinger, an award-nominated journalist, wrote in her essay for Eater that “in all my years of restaurant work, I had never seen anything like the roiling, red-faced, screaming, pulsing, wrath-filled man that was David Chang”. She worked as corporate beverage manager at the Momofuku restaurant group in 2008. Chang responded to Selinger’s essay and said that while he didn’t recall specific incidents mentioned by her, “they are entirely consistent with my behaviour at the time, which I did not begin to correct until several years later”. He added that “the bottom line is that I’m sorry”. Apart from his podcast, Chang also hosted Netflix’s travel and food series Ugly Delicious from 2018 to 2020. The show aired two series and featured celebrity guests including Jimmy Kimmel and Nick Kroll. Read More Walk this way... but not like that: How men’s walks became sexualised Jonnie Irwin makes rare red carpet appearance as he says ‘every day is a gift’ Influencers face backlash for promoting Shein factory during PR trip in China Budget Bites: Three light recipes that sing of summer Danny Dyer explains why he has a Toby Carvery Platinum Gold Card Three quick and easy plant-based fakeaways to create at home

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