What first springs to mind when you think about Scandinavians? Genetically blessed blondes, pickled fish and a functioning welfare state? Maybe, if you’re lucky enough to know one, it’s our obsession with Midsummer’s Eve.

The annual event when we get together to make our own flower-crowns and gather family and friends around a long table for a meal outdoors, which will inevitably include at least three types of herring and two types of salmon washed down with aquavit.

And now there’s another Nordic cultural staple entering the British public conscience: it’s hygge, and a slew of books about the subject occupy space in the bestseller lists.

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Feel good factor: Sara Malm (right) and friend Hanna in flower-crowns at a London Midsummer's Eve event

So what’s it all about? Well, there’s no direct translation: hygge – pronounced ‘hoo-ga’ – is a Nordic word that describes ‘a feeling of cosiness and content’, and ‘enjoying the good things in life with good people around you’.

For Swedish people like me, the traditional midsummer celebration is the essence of ‘hygge’, but its philosophy goes far beyond an annual lunch in the garden: it is a mentality shared by all Viking descendants.

And there is overwhelming medical evidence that adopting a few of our Nordic ways might just be the health boost you’re looking for…

1 GET OUT OF THAT GYM

Signe Johansen’s new book How To Hygge hails the Nordic people’s love of being in nature as the key to hygge, stating that ‘the outdoors is preferable to the gym every time’.

This is backed up by several studies which have found that those who exercise outdoors are more likely to keep up a consistent routine. Even walking outdoors compared to on a treadmill automatically increases the calorie burn by ten per cent, due to factors such as wind resistance.

Signe Johansen’s new book How To Hygge hails the Nordic people’s love of being in nature as the key to hygge

2 CLEAR YOUR HEAD

Hunting is a popular pastime in Scandinavia, involving a long waiting game where an entire day can be spent sitting alone and completely still in the forest without even seeing an animal, simply breathing and concentrating. This is hygge, too: that feeling of being content, in nature, without breaking a sweat. Research has found that being in a park or forest environment lowers stress levels, increases energy, boosts self-esteem and makes you less angry.

3 THE JOY OF EXERCISE

The hygge view is that being physical – taking exercise – is enjoyable, not a chore. Signe Johansen points out that hygge is about the joy of sport as a group activity. She adds that, as numerous recent studies have proven, a sedentary lifestyle is far more dangerous to our health than being overweight or even smoking. My parents, who turn 60 next year, work out several times a week and go ice-skating, cross-country skiing and walking. Swedish men have a life expectancy of 80.7 years – ranked fourth in the world – with UK males at just 79.4. For women it’s 84 versus 83.

4 ENJOY A FAMILY MEAL

When dining hygge-style, it is ‘the kinship generated through conviviality at the table that really matters’, and the Scandinavians try their best to do sit-down family dinners every day of the week, not just for the Sunday roast. A full-time working week in Sweden is 37.5 hours, and while only one per cent of the country’s employees work overtime, they’re no less productive, according to the Organisation for Economic Co-operation and Development (OECD) Better Life Index. Having a good work-life balance is key to protecting yourself against the harmful effects of stress.

The Little Book of Hygge: The Danish Way to Live Well

5 DE-STRESS WITH COFFEE

Swedes drink the most coffee per person in the world, followed by Finland, due to the tradition of daily ‘fika’: a break to sit down, enjoy a hot drink and often a sweet pastry or a cinnamon bun. Johansen hails fika as ‘the essence of hygge’, calling it ‘a prime example of a balanced, Nordic philosophy of life’. A 2010 survey of business leaders in 36 countries found that the Swedes, followed by the Danish and the Finnish, were the least stressed.

6 LOWER CHOLESTEROL

The Nordic diet was all the rage long before hygge hugged the nation, based on the staples of Scandinavian cuisine. A 2013 study found that following a ‘Nordic diet’ of whole-grain products such as Ryvita-style ‘knackebrod’, fish three times a week, root veg, berries, locally sourced fruits such as apples and plums and avoiding sugar-sweetened foods, lowered cholesterol.

7 EAT WHAT YOU LIKE

The mentality of ‘hygge’ means enjoying the good things in life without feeling guilty, including indulging in the food that makes you happy every now and then, be it bacon, beer or cinnamon buns.

Despite this, the proportion of adults in Sweden who are obese is 14 per cent, compared to the UK’s 27 per cent. Out of 34 OECD countries, the UK is the eighth fattest, with the Scandinavian nations way down the list in 23rd (Norway), 25th (Sweden) and 26th (Denmark) place.

8 ...BUT IN MODERATION

The Scandinavians firmly believe in ‘lordagsgodis’ – Saturday Sweets – and allow children to have a small bag of pick-and-mix once a week. It’s ingrained in Scandinavians from childhood that you treat yourself on Saturdays, and then for the rest of the week, excess is off the table. Studies show a treat every now and then can make a person more likely to stick to a diet.

9 SING FOR YOUR SUPPER

Any Brit invited to a Swedish smorgasbord has either looked on in terror – or worse, been forced to join in – as everyone around the table raises their glasses of aquavit (a Scandinavian botanical spirit, like gin, but better) and begins to loudly sing a ‘snapsvisa’ – a drinking song. As Johansen points out in How To Hygge, a spirit of healthy hedonism reigns supreme in Nordic culture, and to the Scandis, aquavit without singing would be like roast dinner without gravy.

A 2013 study by scientists at Gothenburg University found that singing in unison has similar benefits to yoga. Researchers found that choristers’ heartbeats and breathing synchronise, which helped lung and heart health.

10 BOOST HAPPINESS

It’s a fact: Nordic nations are much happier than the rest. The latest OECD World Happiness Report put Denmark at No 1, Iceland in third, followed by Norway and Finland, way ahead of the UK at 23.