（来源：科普中国） 转自：科普中国 冬天，各种保暖衣物五花八门，其中羊毛衫成为了很多人的"续命装备"。可人还没冻明白，羊毛衫先崩溃了——每到这个时候，"羊毛衫怎么打理"都会成 为一个热点问题，特别是羊毛缩水很让人头疼。 牲"了几件羊毛衫？图源：小红书@小熊睡不饱、胖胖不胖 与此同时，网上"让缩水羊毛恢复"的偏方也开始大行其道，让人不知道该怎么办。 请欣赏网友贡献的民间奇招 评论区报个数，今年"牺 最外面是一道道鳞片 图源：参考文献[1] 当我们清洗羊毛衫时，水洗搅动、揉搓挤压等外力会让羊毛纤维表面的细小"鳞片"相互咬合，像一排排微型棘轮一样"越拉越紧"，直至羊毛纤维纠缠在一 起，变得不再蓬松，保暖效果也因此下降。 "奇招"是否有效，且看下文 图源：小红书@燃烧一颗恒星来向你道别、璿璿璿仔 羊毛为啥一洗就"缩"？ 羊毛这种材质和我们人体的毛发有相似之处，毕竟它们最初的功能都是为了保暖。 就像我们的头发有一层毛鳞片，羊毛纤维的表面也有一道道鳞片，正是它们影响了羊毛在洗涤之后的状态。 如果这种情况比较严重，羊毛衫就会出现明显的缩水，甚至洗完之后没法穿了。 如果只是物理变化，问题还不算太糟。羊毛的主要成分是蛋白质，它 ...

Group 1 - Mingchen Health's stock increased by 5.14%, reaching 26.59 CNY per share, with a trading volume of 1.03 billion CNY and a turnover rate of 1.49%, resulting in a total market capitalization of 70.87 billion CNY [1] - Mingchen Health, established on December 14, 1994, and listed on December 18, 2017, is based in Shantou, Guangdong Province. The company specializes in the research, production, and sales of health care products, including shampoos, conditioners, shower gels, gel water, and skincare products [1] - The revenue composition of Mingchen Health is as follows: 76.84% from online games, 23.09% from daily chemical products, and 0.07% from other sources [1] Group 2 - Guotai Fund's Guotai Zhongzheng Animation Game ETF (516010) entered the top ten circulating shareholders of Mingchen Health, holding 1.2948 million shares, which accounts for 0.49% of the circulating shares. The estimated floating profit today is approximately 1.6832 million CNY [2] - The Guotai Zhongzheng Animation Game ETF (516010) was established on February 25, 2021, with a current scale of 30.01 billion CNY. Year-to-date returns are 11.68%, ranking 767 out of 5542 in its category; the one-year return is 61.36%, ranking 666 out of 4256; and since inception, the return is 59.5% [2] Group 3 - The fund manager of Guotai Zhongzheng Animation Game ETF (516010) is Huang Yue, who has been in the position for 4 years and 353 days. The total asset scale of the fund is 35.78 billion CNY, with the best fund return during his tenure being 50.08% and the worst being -57.08% [3]

Group 1 - The core viewpoint of the news is that Mingchen Health has seen a stock price increase of 5.05%, reaching 24.56 CNY per share, with a trading volume of 214 million CNY and a turnover rate of 3.38%, resulting in a total market capitalization of 6.546 billion CNY [1] - Mingchen Health, established on December 14, 1994, and listed on December 18, 2017, is located in the Lian Nan Industrial Zone of Chenghai District, Shantou City, Guangdong Province. The company specializes in the research, development, production, and sales of health care products, including shampoos, conditioners, shower gels, gel water, and skincare products [1] - The revenue composition of Mingchen Health is primarily from online games at 76.84%, followed by daily chemical products at 23.09%, and other sources at 0.07% [1] Group 2 - Among the top ten circulating shareholders of Mingchen Health, a fund under Guotai Fund ranks as a significant stakeholder. The Guotai Zhongzheng Animation Game ETF (516010) entered the top ten circulating shareholders in the third quarter, holding 1.2948 million shares, which accounts for 0.49% of the circulating shares. The estimated floating profit today is approximately 1.5279 million CNY [2] - The Guotai Zhongzheng Animation Game ETF (516010) was established on February 25, 2021, with a current scale of 3 billion CNY. Year-to-date returns are 17.29%, ranking 178 out of 5525 in its category; the one-year return is 73.43%, ranking 319 out of 4208; and since inception, the return is 67.52% [2]

Group 1 - The core viewpoint of the news is that Mingchen Health's stock has experienced fluctuations, with a recent decline of 2.03% and a total market capitalization of 6.175 billion yuan [1] - As of January 14, the stock price is reported at 23.17 yuan per share, with a trading volume of 161 million yuan and a turnover rate of 2.57% [1] - The net outflow of main funds is 16.4345 million yuan, with significant selling pressure observed [1] Group 2 - Mingchen Health's stock has seen a year-to-date increase of 0.78%, with a 1.00% rise over the last five trading days, a 6.04% increase over the last 20 days, and a substantial 31.35% increase over the last 60 days [2] - The company, established on December 14, 1994, and listed on December 18, 2017, specializes in the research, production, and sales of health care products, with a revenue composition of 76.84% from online games and 23.09% from daily chemical products [2] - As of September 30, 2025, Mingchen Health reported a revenue of 1.079 billion yuan, reflecting a year-on-year growth of 9.56%, while the net profit attributable to shareholders decreased by 56.03% to 42.5498 million yuan [2] Group 3 - The company has distributed a total of 151 million yuan in dividends since its A-share listing, with 46.5738 million yuan distributed over the past three years [3] - As of September 30, 2025, the top ten circulating shareholders include various ETFs, with notable changes in holdings among major institutional investors [3]

Core Viewpoint - Hair splitting, known medically as "hair shaft abnormalities," indicates that hair is unhealthy and requires attention [3][4] Group 1: Understanding Hair Shaft Abnormalities - Hair is a specialized structure of the skin, primarily composed of keratin, which is also found in nails and other skin layers [3] - Hair shaft abnormalities encompass various issues, including split ends, which differ from hair loss that originates from follicle problems [3][4] - Common manifestations of hair shaft abnormalities include split ends, hair fragility, changes in appearance and texture, tangling, difficulty in combing, thinning, and slow growth [5][6] Group 2: Causes of Hair Shaft Abnormalities - The majority of hair shaft abnormalities are caused by external factors such as mechanical, chemical, and thermal damage [8][11] - Mechanical damage can occur from excessive brushing, rough towel drying, and tight hairstyles, leading to structural loss and shine [14] - Chemical damage arises from hair treatments like dyeing and perming, which can break down keratin and damage the hair cuticle [15][16] - Thermal damage is caused by high temperatures from styling tools, leading to internal hair damage and increased fragility [18][21] Group 3: Solutions for Healthy Hair - To maintain healthy hair, it is essential to minimize negative impacts by avoiding harsh mechanical actions and excessive heat [22][23] - Regular use of conditioners can help protect hair by addressing surface abnormalities and improving texture [26][27] - Cutting hair shorter can reduce mechanical damage and the risk of split ends, providing a quick solution to improve hair health [28]

Core Viewpoint - Hair issues are not limited to hair loss; split ends are also a significant concern, indicating underlying hair health problems [1][3] Group 1: Hair Structure and Abnormalities - Hair is a specialized structure known as "hair shaft," primarily composed of keratin, which is also found in nails and animal hooves [4] - Abnormalities in hair structure, termed "hair shaft abnormalities," differ from hair loss, which is related to follicle issues [4][6] - There are two classifications of hair shaft abnormalities based on hair brittleness, which can lead to breakage or structural irregularities without breakage [4][6] Group 2: Causes of Hair Shaft Abnormalities - External factors are the primary causes of hair shaft abnormalities, including mechanical, chemical, and thermal damage [6][7] - Mechanical damage can occur from excessive brushing, rough towel drying, and tight hairstyles, leading to structural loss and dullness [9][10] - Chemical damage arises from hair treatments like dyeing and perming, which can weaken the hair structure due to harsh chemicals [11][12] - Thermal damage from tools like hair dryers and straighteners can create internal bubbles in the hair, leading to fragility [13][14] - Environmental factors such as UV exposure, humidity, and pollution can also contribute to hair damage, particularly from prolonged sun exposure [14] Group 3: Solutions for Healthy Hair - Recommendations to maintain healthy hair include reducing mechanical damage by avoiding harsh treatments and minimizing heat exposure [16][17] - The use of conditioners is advised to help repair damaged hair surfaces and improve manageability [15][17] - Shortening hair length can reduce mechanical stress and the risk of damage, particularly for individuals with long hair [15][18]

Core Viewpoint - The hairdressing industry is experiencing a transformation amidst declining birth rates and the closure of educational institutions, indicating a shift in consumer behavior and market dynamics [1][2]. Group 1: Industry Challenges - The hairdressing industry is facing a decline, with many establishments struggling to compete in the e-commerce era without direct confrontation [3][4]. - A significant number of hairdressers lack formal training, often relying on basic techniques and misleading practices to attract customers [8][10]. - The prevalence of deceptive pricing strategies has led to customer dissatisfaction, with many feeling they are overcharged for subpar services [11][12]. Group 2: Consumer Behavior - Customers are increasingly wary of hair salons due to aggressive upselling tactics and fear of being overcharged, leading to a decrease in demand for hair services [16][18]. - The rise of low-cost hair services, with prices dropping to as low as 10 yuan for a haircut, has intensified competition but often at the expense of service quality [18][20]. - Many salons are shifting their business models to include beauty services and product sales, attempting to attract customers who prefer one-stop shopping experiences [20][21]. Group 3: Market Dynamics - The influx of new entrants into the hairdressing market has resulted in oversaturation, with many salons prioritizing quick profits over sustainable practices [14][22]. - The sale of hair care products has become a primary revenue source for salons, targeting young professionals and students who may not have long-term loyalty to specific establishments [24][26]. - The industry is caught in a vicious cycle of price wars and declining service quality, making it difficult for salons to maintain profitability and customer loyalty [26][28].

Core Viewpoint - The National Medical Products Administration (NMPA) of China reported that 37 batches of cosmetics, including shampoos, body washes, hair dyes, masks, sunscreens, and conditioners, do not meet regulatory standards [1] Regulatory Actions - The NMPA has mandated local drug supervision departments in Shanghai, Shandong, Guangdong, and other provinces to investigate the manufacturers and registrants of the non-compliant cosmetics [1] - Companies are required to implement risk control measures and conduct self-inspections and corrections [1] - Local authorities must order the cessation of sales of the non-compliant products and investigate the procurement records of the retailers [1] Legal Consequences - The NMPA emphasized that any illegal activities discovered during the investigations will be dealt with severely, and cases involving criminal offenses will be referred to law enforcement [1]

Group 1 - The core viewpoint of the news is that Mingchen Health has seen a stock price increase of 5.42%, reaching 20.82 CNY per share, with a trading volume of 147 million CNY and a turnover rate of 2.72%, resulting in a total market capitalization of 5.549 billion CNY [1] - Mingchen Health Products Co., Ltd. is located in the Lian Nan Industrial Zone of Chenghai District, Shantou City, Guangdong Province, established on December 14, 1994, and listed on December 18, 2017. The company specializes in the research, development, production, and sales of health care products, including shampoos, conditioners, shower gels, gels, and skincare products [1] - The main business revenue composition of Mingchen Health is as follows: 76.84% from online games, 23.09% from daily chemical products, and 0.07% from other sources [1] Group 2 - Among the top ten circulating shareholders of Mingchen Health, a fund under Guotai Fund ranks as a significant shareholder. The Guotai Zhongzheng Animation Game ETF (516010) entered the top ten circulating shareholders in the third quarter, holding 1.2948 million shares, which accounts for 0.49% of the circulating shares. The estimated floating profit today is approximately 1.3854 million CNY [2] - The Guotai Zhongzheng Animation Game ETF (516010) was established on February 25, 2021, with a current scale of 3.001 billion CNY. Year-to-date returns are 33.92%, ranking 840 out of 4208 in its category; the one-year return is 26.45%, ranking 1051 out of 3981; and since inception, the return is 33.16% [2]

Core Viewpoint - The article highlights the transformation of nature reserves from being mere "ecological islands" to active participants in biodiversity conservation and local economic development, using the example of the Xuebaoshan National Nature Reserve in Chongqing as a model for high-quality development [1][2]. Group 1: Research and Conservation Efforts - The Xuebaoshan Nature Reserve focuses on integrating scientific research with conservation efforts, addressing the mismatch between research supply and actual conservation needs [2][3]. - The reserve has successfully bred over 3 million seedlings of the endangered plant species, Chamaecyparis obtusa, and has released more than 750,000 back into the wild [3][4]. - Advanced technologies such as drone RTK measurement and Beidou high-precision positioning are being utilized for resource surveys to support precise conservation efforts [2][3]. Group 2: Community Engagement and Economic Development - The reserve has established a model of community engagement, allowing local villagers to participate in seedling care and conservation activities, which has led to increased income for over 500 villagers [7][8]. - The development of eco-tourism and forest economy initiatives is creating a sustainable income stream for local communities, demonstrating a successful integration of conservation and economic growth [7][8]. - The local government is implementing a five-year action plan to promote the integration of Chamaecyparis obtusa protection and utilization, ensuring that local communities benefit from conservation efforts [8][9]. Group 3: Product Development and Market Expansion - The reserve has launched over 10 ecological products, including essential oils and hair care products derived from Chamaecyparis obtusa, and has registered more than 60 related intellectual property rights [9]. - Future plans include establishing a key laboratory for Chamaecyparis obtusa, focusing on its medicinal and aromatic properties, to develop a comprehensive ecological industry chain [9]. - The initiative aims to create a "Chamaecyparis obtusa+" business model, enhancing local economic benefits while promoting biodiversity [9].