贾斯汀·比伯 （Justin Bieber） 的外表改变引发了公众的关注，专家指出压力、健康问题和生活变化。 Justin Bieber's altered appearance sparks public concern, with experts pointing to stress, health issues, and life changes.

贾斯汀·比伯 （Justin Bieber） 最近的公开露面因其憔悴和疲惫的外表而引发了粉丝的关注。 Justin Bieber's recent public appearances have sparked concern among fans due to his gaunt and fatigued appearance. 专家认为，自然衰老、压力、睡眠质量和营养等因素导致了他的外表发生变化。 Experts suggest factors like natural aging, stress, sleep quality, and nutrition have contributed to his changed look. 比伯此前曾透露自己与拉姆齐·亨特综合症（一种导致面瘫的疾病）作斗争，他可能也在应对为人父的压力和传闻中的婚姻问题。 Bieber, who previously disclosed struggling with Ramsay Hunt syndrome, a condition causing facial paralysis, may also be dealing with the stress of fatherhood and rumored marital issues. 尽管存在担忧，但这对夫妇最近还是在约会之夜被看到，呈现出统一战线。 Despite concerns, the couple was recently seen on a date night, presenting a united front.