We love the quiet positivity the longer days inspire, but there’s more to this than simple mood-lifting. As the so-called ‘sunshine vitamin’, Vitamin D is vital for bone health (it boosts the absorption of calcium and other minerals) and has long been studied for the potential role it plays in fighting everything from depression to cancer-cell growth.

But it’s the vitamin’s immune-boosting properties that have come under the spotlight more recently, with a growing number of health professionals considering the positive role vitamin D plays in helping the body ward off harmful bacteria and viruses. More clinical studies are needed, but the general belief is that it plays a more important role than has been realised previously.

So eat oily fish, take the daily supplement that, in the UK, is generally recommended for us to get the required RDA. But also, if you can, get out there and feel the sun fall on your skin (following safe skin guidelines, of course) and let your body generate some of its incredible energy for itself.

Your body – and mind – will thank you for it.