Q: How does a Tesla coil work?

More often than not, this dip in desire is a temporary glitch which can be safely resolved by re-evaluating our general health and adjusting lifestyle habits. Unfortunately some medications such as opioids, anti-psychotics, cancer treatments and beta blockers can directly affect sex drive, as do some health issues including depression , fluctuating hormones, arthritis and ageing.

However, where possible there are some changes you can make to help you get back in the mood, specifically with your diet. Nutritionist Sarah Flower reveals her top tips on what foods you can consume to help turn you on and what foods to avoid to prevent turning off.

The idea is that you make a verbal connection on the dating site by being a great conversationalist, you only give a guy your phone number right if he earns it, and if you do give him your number, you’re better off setting up a specific time for him to call.

For years, the idea that blood groups had any medical significance beyond blood transfusions was dismissed by scientists. Cheryl Cole, left, and Elizabeth Hurley, right, are both followers of the ‘blood group diet’ – the idea that different blood types process food differently But a growing number of studies is revealing how our blood groups may make us more prone to lethal illnesses — or even protect us from them. The latest research into blood types shows that having group O blood can lower your risk of heart attacks.

Researchers at Pennsylvania University discovered this benefit in a study involving 20, people. Their research, to be published in The Lancet, found that most people who have a gene called Adamts7 face a significantly raised risk of suffering a heart attack. But in people with blood group O who have the Adamts7, there is no raised risk. Dr Muredach Reilly, the lead researcher, says this knowledge may help to develop new therapies for people at risk of heart attacks.

Such drugs may mimic the beneficial effect of the O blood group gene. Only 40 per cent of people in Britain know what their group is, according to the National Blood Service. But in future, we may be far more keen to learn it — and to understand its life-saving implications.