你是否曾陷入過這樣的減肥困境:少油少糖頓頓清淡,跑步跳操累到出汗,可體重秤上的數字紋絲不動,甚至悄悄上漲……
![]()
這背后的“真兇”,可能是一種被稱為皮質醇的激素。
什么是皮質醇?
皮質醇是一種由大腦刺激腎上腺分泌的激素,通俗講,它的工作就是幫我們來對抗壓力。
在急性應激狀態下,皮質醇短期升高有助于動員能量、維持血糖穩定、調節免疫反應,是機體的一種正常保護機制。
Cortisol is a hormone that is released by adrenal glands via signals from the brain. In simple terms, cortisol's job is to help us handle stress.
cortisol /?k??rt?zɑ?l/ 皮質醇
adrenal gland /??dri?.n?l ?ɡl?nd/ 腎上腺
During periods of acute stress, a short-term rise in cortisol helps mobilize energy, keeps blood sugar stable, and regulates the immune response — it's the body's normal, built-in way of protecting itself.
然而,熬夜加班、情緒焦慮、家庭瑣事、精神內耗、睡眠不足……這些壓力持續不斷,讓身體一直誤以為“處于危險中”,于是皮質醇長期居高不下,而這就是“壓力肥”的開始。
![]()
皮質醇增多可以通過多種作用機制影響體重。
提升食欲:皮質醇可以作用于大腦的食欲調節中樞,刺激食欲,使人們進食高熱量、高脂肪和高糖食物。
Cortisol acts on the brain's appetite-regulating centers, stimulating hunger and driving people to reach for foods that are high in calories, fat, and sugar.
促進血糖轉化為脂肪:皮質醇會提高糖原、脂類、蛋白質的分解,間接增加血液中葡萄糖的含量,為了“消滅”血糖,胰島素含量就會隨之升高,將血糖轉化成脂肪儲存在我們的身體里。
Cortisol speeds up the breakdown of glycogen, lipids, and proteins, which indirectly raises the level of glucose in the blood. To "mop up" this excess blood sugar, insulin levels then rise, converting that glucose into fat and storing it throughout the body.
mop up 結束,完成
影響其他激素:長期的皮質醇偏高會讓我們的面部、腰腹及后背等部位的脂肪更容易堆積,也會通過影響其他相關激素水平來增加我們內臟脂肪的囤積。
When cortisol is chronically elevated, it makes it easier for fat to accumulate around the face, waist, abdomen, and back. It also promotes the buildup of visceral fat by altering the levels of other related hormones.
如何降低皮質醇?
越減越肥不是意志力問題,而是壓力下的生理反應。當皮質醇水平回歸正常,自然會輕松瘦下來。正確的順序是先減壓,再減重;先睡好,再吃好。
以下幾種方法對降低皮質醇有幫助:
?緩解壓力:睡前泡腳,壓力大時深呼吸,做一些自己喜歡的事,聽舒緩的音樂使身體放松下來。
Soak your feet before bed. When you're feeling overwhelmed, take deep breaths. Do things you enjoy and listen to soothing music to help your body unwind.
?避免熬夜:皮質醇分泌有晝夜規律,養成良好的睡眠習慣,早睡早起有助于調節皮質醇水平,讓減肥事半功倍。
Cortisol secretion follows a circadian rhythm. Developing good sleep habits — going to bed early and waking up early — helps regulate your cortisol levels, making your weight loss efforts twice as effective.
![]()
?健康飲食:不要不吃早餐,在膳食指南推薦的飲食框架下,適當增加優質碳水化合物的攝入,可以降低靜息狀態下的皮質醇水平。
?適當運動:多做一些低強度的戶外有氧運動,例如慢跑、騎車、打羽毛球;這會促使身體分泌內啡肽,讓人感到愉悅和舒緩,從而降低皮質醇水平。
你在減肥過程中有哪些苦惱呢?快來評論區分享你的健康減肥小妙招!
![]()
來源:央視新聞微信公眾號綜合中國疾控中心
跟著China Daily
精讀英語新聞
“無痛”學英語,每天20分鐘就夠!
特別聲明:以上內容(如有圖片或視頻亦包括在內)為自媒體平臺“網易號”用戶上傳并發布,本平臺僅提供信息存儲服務。
Notice: The content above (including the pictures and videos if any) is uploaded and posted by a user of NetEase Hao, which is a social media platform and only provides information storage services.