From chain-smoking to binge-drinking, Bridget Jones’s habits would have been terrible for her health

She chain-smoked her way through romance and heart-break and binge-drank Chardonnay until it went out of fashion (and then came back in again) – and now Bridget Jones is back.

Mad about the Boy is the fourth and final film in the Bridget Jones series. It’s almost 30 years since Helen Fielding hit the bestseller lists with the accident-prone, self-deprecating eponymous heroine of Bridget Jones’s Diary. Tales of “emotional f-ckwits” and “really bloody enormous pants” resonated with readers and the film adaptations cemented Bridget Jones’s status as a well-loved character.

Fans of the original Bridget Jones’s Diary will remember her daily log of statistics. Many will have read the entries, listing calories, cigarettes and alcohol units consumed, with a nod of recognition. The alcohol-free diet that’s started with fierce determination one day descends into hungover calorific chaos the next. But is Bridget’s lifestyle as loveable in real life as it is on the page and screen?

Thanks to the handy summary about calorie intake, cigarette count and alcohol units at the end of the original diary, I’ve been able to take a closer look at what her lifestyle might mean in reality. On paper – and on screen – her lifestyle might look like the kind of smoking, drinking, break-up binge eating (and the occasional magic mushroom in Thailand) to which lots of readers and viewers can relate.

But even the book recognises that Bridget’s lifestyle isn’t sustainable, as it includes a warning and disclaimer. And, the relentless focus on weight and calorie consumption might be a reflection of the social pressure women face, but it’s also been criticised for its potential danger to some of its audience.

Smoking

In the original diary, Bridget’s cigarette count for the year is 5,277: around 14-15 a day. In clinical practice, we often standardise this in numbers of “pack-years” of smoking. One pack equals 20 cigarettes, so if you smoke 20 a day for one year, that makes one pack-year. In the case of Bridget, this makes approximately 0.75 pack-years.

You might think that figure doesn’t seem very high – but add the count from the following year in Bridget Jones: The Edge of Reason, plus of all the years before it, and the pack-years start adding up and are more like five, seven, even ten.

The higher the number of pack-years exposure, the greater the risk of developing an associated disease or complication. For many years, a critical level of ten pack-years or more was associated with significant risk of developing a lung condition called COPD (chronic obstructive pulmonary disease), which ranges in severity and can lead to distressing symptoms including persistent coughing, wheezing and shortness of breath.

But patients with a history of less than ten pack-years exposure may also be at significant risk, which is why some argue this critical level should be lowered.

What kind of health issues could Bridget face after smoking so much for so long? Smoking is notorious for causing cancer, including lung, bladder, kidney and stomach cancers. Smoking also negatively affects cardiovascular health and fertility and causes gum disease and a variety of other health issues – the list is long.

In Mad About the Boy, Bridget has kicked the habit, and uses nicotine-replacement therapy to reduce cravings.

Calories

Bridget logged her daily calorie count, but she was perhaps not a reliable narrator. Over the course of the year, she calculated that she’d consumed over 11 million calories. “Repulsive,” she states – and also highly unlikely. This total would equate to over 30,000 calories a day, approximately six to ten times more than most competing bodybuilders would consume.

By the end of Bridget Jones’s Diary, she had gained 5st 2lbs and lost 5st 3lbs, resulting in a net loss of a pound. So broadly speaking what went in, must have matched what energy was consumed. Her starting weight for the year is 9st 3lbs, and taking (for argument’s sake) Renée Zellweger’s 5f 4ins height that gives a body mass index (BMI) of 22.1 – right in the middle of the “normal” BMI range of 18.5 to 25.

Bridget, as many have pointed out over the years, is certainly not overweight.

Bridget’s daily weigh-in on the bathroom scale routine may have fed her preoccupation with minor fluctuations. Weight isn’t just a measure of fat, it’s also the body’s water and waste. Measuring weight less frequently is a more effective way to gauge the overall trend of whether weight is going up or down. ## Alcohol

“I WILL NOT drink more than 14 alcohol units a week,” Bridget writes in the opening of the original diary.

However, despite 114 hangover-free days, Bridget ends up with annual alcohol consumption of 3,836 units – that’s a weekly intake of around 74 units – much more than the maximum of 14 units recommended for both men and women.

Read more: The hangover in literature, from Shakespeare and Burns to Bridget Jones

Bridget recognises that she drinks too much and, as seen in her new year’s resolutions, often intends to cut back. In clinical practice, we use the Cage questions to help evaluate whether a patient has issues with alcohol. We might ask, for example, whether the person is annoyed by criticism of their drinking or feels guilty about it? Do they use alcohol as an “eye-opener” in the morning?

So while Bridget Jones may prove as endearing as ever to audiences this year – and her love life just as chaotic – it’s probably for the best that her lifestyle seems a bit healthier this time around. It would have been awful to have her story end with untimely death by Chardonnay.

Dan Baumgardt does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.