Blue space: why we feel calmer near water

Researchers use the term 'blue space' for outdoor environments with visible water, such as coastlines, lakes, rivers and canals. A growing body of studies has linked time near water with better mood and feelings of restoration.

Many people know the feeling already: the steady sound of waves, light on moving water, the wide-open horizon. You don't need a beach holiday to get some of it.

Look closer to home. There may be a river path, a canal, a reservoir or a park pond nearby. Thirty unhurried minutes there, without headphones, is a very good afternoon.