id	keyword
hls-13416	stretching
hls-13416	pain
hls-13416	relaxation
hls-13416	breathing
hls-13416	dysmenorrhea
hls-13416	exercise
hls-13416	nature
hls-13416	study
hls-13416	sounds
hls-13416	intervention
hls-13416	level
hls-13416	breathing relaxation