関連ワード:
why does your body jerk when you re falling asleep why does the body jerk when you re falling asleep why does your body jump when you re falling asleep why does your body jerk when you are falling asleep why does your body shake when you're falling asleep why does your body jerk sometimes when you're falling asleep why does your body suddenly jerk when you re falling asleep why does your body jump when you are falling asleep why does your body jolt when you are falling asleep why does your body jerk when you're trying to fall asleep
