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#藍光
NOW健康
藍光催人老!不只太陽 小心睡前滑手機加速黑色素沉澱
【NOW健康 辰蘊如/台中報導】明明沒怎麼曬太陽,臉上的斑點卻越來越明顯?現代人每天盯著手機螢幕平均超過3小時,重度使用者更高達7至11小時。當擔心紫外線傷害時,卻忽略手機、電腦螢幕,甚至室內LED燈持續釋放的藍光,而這些看似無害的藍光正在悄悄改變膚質,甚至加速老化。藍光刺激黑色素 加速皮膚變老研究發現,藍光會刺激黑色素生成,對亞洲人影響特別明顯。皮膚專科廖朝瑜醫師表示藍光照射會降低皮膚中的類胡蘿蔔素,產生大量自由基攻擊黑色素細胞,讓皮膚開始產生色素沉澱,長期累積可能形成黃褐斑或黑斑。又若根據膚色分類,亞洲人常見的橄欖膚色及更深膚色,都比白種人更容易受藍光影響。除了變黑,藍光還會破壞膠原蛋白結構加速老化,出現細紋、皺紋和失去彈性。廖朝瑜醫師解釋多數人使用手機的距離過近,對肌膚刺激的傷害自然增加;尤睡前滑手機會抑制褪黑激素分泌影響睡眠,而睡眠不足讓皮質醇上升,加速分解膠原蛋白,形成惡性循環。日常保養開始 防護藍光原則對抗藍光傷害要從日常保養做起,廖朝瑜醫師提醒即便都在室內活動也要塗防曬,選擇含二氧化鈦、氧化鋅或氧化鐵的礦物性防曬,SPF30以上最佳,有色防曬效果更好。此外,搭配抗氧化保養品如維生素C、維生素E精華液,能中和藍光產生的自由基。廖朝瑜醫師建議早上先擦精華液再塗防曬,菸鹼醯胺也能強化皮膚屏障並預防色素沉澱。生活習慣要開啟手機和電腦的夜間模式,睡前一小時遠離螢幕,使用時保持與臉部距離,每20分鐘休息一下。若皮膚已出現色素沉澱或老化,可尋求皮膚科醫師協助,透過煥膚或雷射治療改善,平日做好防護,就能在享受科技便利的同時守護皮膚健康。# 首圖來源/Freepik更多NOW健康報導▸膚質非乾即油?混合肌是常態 AI皮膚檢測讓保養更精準▸高度近視小心核性白內障 醫揭飛秒雷射白內障手術優勢NOW健康:FB │ IG │ Threads │ YT │ 官方LINE │ 醫級邦 │ 健康安妞 Podcast❤溫馨提醒:歡迎轉傳「原始文章連結」分享,未經授權,請勿複製圖文轉貼本文。
2025/11/15
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