KASARASAN == HEALTHY LIFE

Human skin to the attention of quite important in the maintenance of health. Different environmental conditions, require man to think of ways how to keep your skin can adapt and adjust to the environment, in order to get healthy skin and manicured. To get a healthy skin, then we need also to know whether it's skin, and how to care for it.

Definition of the skin according to wikipedia (http://www.wikipedia.org/) are: human skin consists of epidermis and dermis. The skin serves as a means of excretion because of the sweat glands (glands sudorifera) located in the dermis layer. The epidermis is composed of the horny layer (corneum layer) and layer Malpighi. Corneum layer is the layer of dead skin, which can be peeled off and replaced by new cells. Malpighi layer consists of layers and layers germinativum spinosum. Spinosum layer serves to hold the friction from the outside. Germinativum layer contains cells that are actively dividing, replacing the layer of cells in the corneum layer. Malpighi layer containing the pigment melanin that gives color to the skin. This layer is the dermis contains blood vessels, hair follicles, nerve endings, sweat glands and oil glands. Sweat glands produce sweat. The amount of sweat that can be issued to 2,000 ml per day, depending on the needs of the body and temperature regulation. Sweat contains water, salt, and urea. Another function as a means of excretion is the organ recipient sebgai stimulation, protection against physical damage, irradiation, and the seeds of disease, as well as for the regulation of body temperature. At high ambient temperatures (heat), sweat glands become active and dilated capillaries in the skin. Widening of capillary vessels will facilitate the process of disposal of water and metabolic waste. Active sweat glands cause perspiration to the surface of the skin by evaporation. Evaporation resulted in skin surface temperature dropped so that we do not feel hot anymore. Conversely, when the ambient temperature is low, sweat glands do not aktid and narrowed capillaries in the skin. In these circumstances blood does not dispose of metabolic waste and water, as a result of evaporation is greatly reduced, so keep the body temperature and body does not have kendinginan. Sweating is controlled by the hypothalamus.



The skin has several functions:
    * As a means expenditures in the form of sweat glands.
    * As a tentacle.
    * As a protective organs underneath.
    * Place made Vit D with the help of sunlight.
    * Regulatory body temperature.
    * Places to hoard fat.

How to maintain healthy skin:

 1. Keep your skin clean. Quite a shower 2x a day
 2. Drink at least 8 glasses of water a day
 3. Healthy lifestyles, which consume foods that contain vitamins and fiber and regular exercise.
 4. Keeping the skin to stay dry and clean, especially the areas of skin folds and areas covered.
5. Do not smoke
6. Do not drink beverages containing alcohol
7. Clean faces after traveling or before bed with a facial cleanser according to skin type.
8. Get plenty of rest, with nighttime sleep approximately 8 hours
9. Avoid stress
10. Avoid the midday sun which contains ultraviolet

Kulit manusia menjadi perhatian yang cukup penting dalam pemeliharaan kesehatan tubuh. Kondisi lingkungan yang berbeda, menuntut manusia untuk memikirkan cara bagaimana menjaga agar kulitnya dapat beradaptasi dan menyesuaikan diri dengan lingkungannya, sehingga didapat kulit yang sehat dan terawat. Untuk mendapatkan kulit yang sehat, maka kita perlu juga mengetahui apakah kulit itu, dan bagaimana cara merawatnya.



Definisi kulit menurut wikipedia (http://www.wikipedia.org/) adalah : Kulit manusia terdiri atas epidermis dan dermis. Kulit berfungsi sebagai alat ekskresi karena adanya kelenjar keringat (kelenjar sudorifera) yang terletak di lapisan dermis. Epidermis tersusun atas lapisan tanduk (lapisan korneum) dan lapisan Malpighi. Lapisan korneum merupakan lapisan kulit mati, yang dapat mengelupas dan digantikan oleh sel-sel baru. Lapisan Malpighi terdiri atas lapisan spinosum dan lapisan germinativum. Lapisan spinosum berfungsi menahan gesekan dari luar. Lapisan germinativum mengandung sel-sel yang aktif membelah diri, mengantikan lapisan sel-sel pada lapisan korneum. Lapisan Malpighi mengandung pigmen melanin yang memberi warna pada kulit. Dermis Adalah Lapisan ini mengandung pembuluh darah, akar rambut, ujung saraf, kelenjar keringat, dan kelenjar minyak. Kelenjar keringat menghasilkan keringat. Banyaknya keringat yang dikeluarkan dapat mencapai 2.000 ml setiap hari, tergantung pada kebutuhan tubuh dan pengaturan suhu. Keringat mengandung air, garam, dan urea. Fungsi lain sebagai alat ekskresi adalah sebgai organ penerima rangsangan, pelindung terhadap kerusakan fisik, penyinaran, dan bibit penyakit, serta untuk pengaturan suhu tubuh. Pada suhu lingkungan tinggi (panas), kelenjar keringat menjadi aktif dan pembuluh kapiler di kulit melebar. Melebarnya pembuluh kapiler akan memudahkan proses pembuangan air dan sisa metabolisme. Aktifnya kelenjar keringat mengakibatkan keluarnya keringat ke permukaan kulit dengan cara penguapan. Penguapan mengakibatkan suhu di permukaan kulit turun sehingga kita tidak merasakan panas lagi. Sebaliknya, saat suhu lingkungan rendah, kelenjar keringat tidak aktid dan pembuluh kapiler di kulit menyempit. Pada keadaan ini darah tidak membuang sisa metabolisme dan air, akibatnya penguapan sangat berkurang, sehingga suhu tubuh tetap dan tubuh tidak mengalami kendinginan. Keluarnya keringat dikontrol oleh hipotalamus.