More ideas from Diana
Matsyasana: In fish pose, the chest is expanded.  For a more calming effect – particularly if using the Matsyasana as a counterpose – a focus on gentle abdominal breathing can be quite useful. Leslie Kaminoff Yoga Anatomy.net

Matsyasana - Fish Pose- works neck muscles and gives us our awesome abs eventually! Passively lengthens the muscles of the collars as well as the pecks.