Cardiovascular disease is still one of the biggest killers in the UK, but you might be surprised by some of the things that can help to keep your heart healthy.

Research suggests that making just a few simple tweaks to your daily routine really can make a difference.

1. Snack on a handful of nuts

'Walnuts are a rich source of Omega-3 fatty acids, which can help to decrease inflammation in the arteries and protect the heart,' explains British Dietetic Association spokesperson Gaynor Bussell.

'Nuts in general can help to lower cholesterol levels and they will also help to fill you up. But don’t have more than a handful as they are high in calories.'

2. Meet up with friends

According to social psychologist John Cacioppo from the University of Chicago, loneliness is linked to hardening of the arteries, which leads to high blood pressure and an increased risk of heart disease.

He claims that loneliness also raises the levels of cortisol, the stress hormone, which can interfere with circulation, making the heart work harder.

His research shows the fruit flies that are isolated have worse health and die sooner than those that interact with others. So if you’re feeling lonely, try to reconnect with old friends or find a new hobby or join a club or class to help you get out and about and meet new people.

3. Cut down on alcohol

There are regular reports in the news that moderate drinking – specifically of red wine - may be beneficial for your heart, but the key word here is 'may'.

There's still no conclusive proof carried out in controlled studies of the benefits of alcohol on heart disease – meaning that the best thing to do is limit your consumption.

Drinking too much alcohol can cause abnormal heart rhythms, high blood pressure, damage to the heart muscle and other diseases such as stroke, liver problems and some cancers.

4. Choose healthy ways of cooking and preparing food

Avoid frying or cooking foods in fat (e.g. butter or ghee). This applies to meat, fish and vegetables. It’s better for your heart if you bake, grill, steam, boil or poach food instead.

For flavour, use spices, herbs and lemon juice instead of adding salt, cheese or cream.

5. Learn how to meditate

Scientists have discovered that people with heart disease who practised Transcendental Meditation – which was made popular by The Beatles in the 1960s - for just 15 minutes a day can cut their risk of heart attack and stroke by half, compared to those that don’t.

This is thought to be because meditation helps to lower blood pressure - a major risk factor for CVD. In the most recent study, from the University of Iowa, scientists found that practising this type of meditation for 20 minutes per day was enough to make a difference. Deep breathing exercises and yoga breathing are believed to have similar benefits.

6. Sprinkle on some flaxseeds

'Flaxseeds, also known as linseeds, are little seeds that are high in Omega-3 fatty acids. So, like nuts, they can help a little in lowering cholesterol,' explains Gaynor Bussell. 'They are sometimes added to foods in order to help with constipation as they increase fibre intake, and having more fibre in the diet can also help to lower cholesterol.'

You can buy these small ground seeds from health food shops and most supermarkets, and sprinkle them on breakfast cereals or salads or add to yoghurt.

'If you want to try them, start with half a teaspoon and build up to about 2 teaspoons a day,' says Gaynor. 'The slow build up is advisable, as they can cause flatulence and bloating if you’re not used to them.'

7. Lose 5% of your body weight

We all know that losing weight can improve our health – and just a few pounds can make a big difference.

'Experts have found evidence that losing just 5-10% of your body weight if you are overweight or obese improves your metabolic profile. This means that if you have high blood pressure and/or high cholesterol, these levels come down,' explains Gaynor Bussell. 'Eating fewer calories is the only way to successfully lose weight and this is best coupled with some exercise.

'Don’t lose weight too quickly, 1-2lb per week is fine. Experts believe that one of the healthiest types of diet to follow is the Mediterranean diet, which is high in fruits, vegetables and pulses, along with some meat, fish, nuts and seeds, a little olive oil and a glass or two of red wine daily - but no more than this!'