You may think you know what ultraviolet does, but do you know the difference between UVA and UVB, or that applying one sunscreen over another could provide less protection, not more? Here we offer the definitive guide to protecting yourself against ultraviolet – whether you are jetting off to the sun or making the most of a British summer.

Why do we need protection from UV rays?

All experts agree that everyone needs some sunshine – the rays trigger the production of Vitamin D, essential for absorption of calcium from food and may even protect us from some cancers. Those rays are ultraviolet (UV) – an invisible form of electromagnetic radiation emitted by the sun.

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Listening to the right kind of music can slow the heart and lower blood pressure, a study has revealed.

Rousing operatic music, like Puccini’s Nessun Dorma, full of crescendos and diminuendos is best and could help stroke rehabilitation, say the authors.

Music is already used holistically at the bedside in many hospitals.

Not only is it cheap and easy to administer, music has discernible physical effects on the body as well as mood, Circulation journal reports.

Music with a faster tempo increases breathing, heart rate and blood pressure, while slower-pace music does the reverse.

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Vending machines that dispense bars of gold have been unveiled by a German company keen to sell the precious metal at airports across Europe.

Gold vending machines could soon be coming to the UK

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