Dr Medarov said it might be possible to use relaxation techniques and other types of therapy to modify lung function circadian rhythms.

BBC: NEWS | Health | Lungs 'best in late afternoon'

The NX300 also includes i-Depth, an easy and simple way to adjust the depth of an image using the NX Series' unique i-Function system which enables users to modify camera parameters using the lens itself, adjusting the image without ever having to move off target.

ENGADGET: Samsung unveils 3D-capable NX300 mirrorless camera and 45mm f/1.8 2D/3D lens ahead of CES, we go eyes on (update)