A waist trainer can help improve posture by providing firm support around the midsection, encouraging you to sit and stand straighter. Its structured design acts as a reminder to engage your core and maintain proper alignment. However, relying on it too long or wearing it too tightly can strain muscles, so it should be used in moderation alongside core-strengthening exercises for best... https://www.outdoll.com/blogs/news/do-waist-trainers-improve-posture