[HEALTHY] The neck joint in winter, why is it dangerous?,기분 좋은 날20181128

[HEALTHY] The neck joint in winter, why is it dangerous?,기분 좋은 날20181128

The neck joint in winter, why is it dangerous?,기분 좋은 날

[HEALTHY] The neck joint in winter, why is it dangerous?,기분 좋은 날20181128

[HEALTHY] Three major winter diseases that must be careful!,기분 좋은 날20181129

[HEALTHY] Young people are also dangerous?! What causes sudden death?,기분 좋은 날20181127

[HEALTHY] Four minutes of golden time, the law of cardiopulmonary resuscitation!,기분 좋은 날20181127