How to do shoulder exercises in yoga<br>Try some simple breathing exercises first. This pose will help you exercise shoulder muscles you don't use often and will prepare you for higher-intensity workouts later. [substeps] Lie flat on your stomach with your arms at your sides.

Based on that paragraph can we conclude that this sentence is true?
breathing exercises are difficult

Select from the following.
(1). Yes
(2). It's impossible to say
(3). No