幾天洗一次頭發(fā)最好？
頭發(fā)發(fā)質(zhì)的好壞與遺傳、營養(yǎng)、睡眠、精神及系統(tǒng)性疾病等因素有直接的關(guān)系。有研究顯示：天天洗發(fā)不僅不會損傷頭發(fā)導(dǎo)致脫發(fā)、開叉和干枯，而且還可使斷發(fā)的機會減少70％，更有利于頭發(fā)的養(yǎng)護。歐美國家洗發(fā)頻率為平均每周6.4次，日本為每周5次，我國香港為每天一次。
每天清洗頭發(fā)，可以洗去頭皮和頭發(fā)上多余的油脂以及粘附在頭發(fā)上的污垢和頭皮屑，勤洗頭發(fā)不僅不會引發(fā)頭皮屑的增多，反而是控制頭皮屑產(chǎn)生的最有效的方法之一。同時洗發(fā)過程本身也可以對頭皮起到按摩作用，促進頭皮的血液循環(huán)和頭皮組織的新陳代謝，如皮脂的正常分泌，使發(fā)質(zhì)潤澤順滑、光亮成型，對養(yǎng)發(fā)護發(fā)防脫發(fā)防早白都是有積極作用的。
許多人認為天天洗發(fā)會將頭發(fā)上的油脂都洗掉了，頭發(fā)就會發(fā)干發(fā)枯，其實頭發(fā)的發(fā)干發(fā)枯與洗頭的頻率沒有直接的關(guān)系，倒是選擇了不合適自己發(fā)質(zhì)的洗發(fā)劑后會造成這樣的結(jié)果，譬如，本為干性發(fā)質(zhì)的頭發(fā)用了去油去污能力強的適合油性發(fā)質(zhì)的洗發(fā)劑后，頭發(fā)才會愈發(fā)干燥枯萎。下面，就洗頭的頻率，次數(shù)問題，回答一下。
油性發(fā)質(zhì)：夏季每天1洗，冬季隔天1洗
油性發(fā)質(zhì)的女性，由于皮脂排泄旺盛，頭發(fā)油膩厚重凝聚，容易打結(jié)，不柔順。如果在夏季應(yīng)每天洗發(fā)1次，才能保證頭發(fā)的清潔與健康。如果在冬天可隔天洗一次。
干性發(fā)質(zhì)的女性：一周1-2次
干性頭發(fā)的清洗頻率為一周1一2次為宜，洗發(fā)后，最好涂一些頭油或發(fā)脂等油性護理液加以保護，要用干性頭發(fā)專用的洗發(fā)水，盡量不要用吹風機吹頭。梳頭、做發(fā)型不要用力拉頭發(fā)，以免拉斷或拉掉頭發(fā)。
中性發(fā)質(zhì)的女性：兩至三天1次
清潔頭發(fā)的頻率可調(diào)整為每2天一次或者每3天一次。如氣溫升高或經(jīng)常在戶外運動者，頭發(fā)容易受到強烈的紫外線和空氣中粉塵的刺激，為避免發(fā)質(zhì)受損，也宜每天洗頭。
如果覺得頭發(fā)有些干燥或是變細變軟的感覺則應(yīng)減少洗發(fā)的次數(shù)，讓頭發(fā)緩一緩養(yǎng)一養(yǎng)。
還有，臨睡前最好不要洗頭，如果要洗，就用干毛巾擦干，然后再用風筒把頭發(fā)吹干后才睡，這樣，就不會感冒了。
洗頭掉頭發(fā)很厲害，怎么破
正常情況下，每人每日可脫落60 80根頭發(fā)，梳頭和洗頭時常出現(xiàn)較多的脫發(fā)，這是因為已處于休止期尚未脫落的毛發(fā)受牽拉而脫落，因此無需過分緊張。那些頭發(fā)，即便是不洗，自己也會掉，只不過掉的時候你沒有發(fā)現(xiàn)而已。
什么洗發(fā)水對頭發(fā)比較好
無論是洗頭還是洗臉，洗發(fā)露、洗面奶都達不到深層清潔的目的的，再怎么按摩也沒有用。下圖是一個毛囊的示意圖，可以看到毛囊有個大開口，但是里面是深而狹窄的，整體呈漏斗型。毛囊開口的直徑也就是μm左右，清潔成分灌不進去的。因此，不要迷信各種虛頭巴腦的洗發(fā)水功效，更不要相信可以防脫生發(fā)、固發(fā)。
如果洗頭的時候頭發(fā)掉的非常多，自己要注意看是不是脫發(fā)，如果是脫發(fā)就需要及時的治療，否則就會從容不迫的毀掉生活了。
How often does it take to wash the head to benefit the scalp? How many days is it best to wash your hair? The quality of hair is directly related to heredity, nutrition, sleep, mental and systemic diseases. Studies have shown that: washing hair every day will not only not damage the hair, leading to hair loss, split ends and dryness, but also reduce the chance of hair breakage by 70%, which is more conducive to the maintenance of hair. The average shampoo frequency in Europe and the United States is 6.4 times a week, in Japan it is 5 times a week, and in Hong Kong it is once a day. Washing your hair every day can remove the excess oil on the scalp and hair, as well as the dirt and dandruff adhered to your hair. Frequent hair washing will not cause the increase of dandruff, but is one of the most effective methods to control dandruff. At the same time, the shampoo process itself can also play a role in massaging the scalp, promoting the blood circulation of the scalp and the metabolism of the scalp tissue, such as the normal secretion of sebum, making the hair moist, smooth, bright and shaped, and playing a positive role in hair care, hair loss and early whitening. Many people think that washing hair every day will wash away the grease on the hair, and the hair will dry and wither. In fact, the dry and withered hair has no direct relationship with the frequency of washing hair. Instead, choosing a shampoo that is not suitable for your own hair will cause such a result. For example, the dry hair will become more dry and withered after using a shampoo that is suitable for oily hair with strong degreasing and decontamination ability. Next, I will answer the question about the frequency and frequency of shampoo. Oily hair: women who wash their oily hair every day in summer and every other day in winter are easy to knot and not smooth because of the strong sebum excretion and the greasy, thick and condensed hair. If you should wash your hair once a day in summer, you can ensure that your hair is clean and healthy. If it is in winter, it can be washed every other day. Women with dry hair: dry hair should be cleaned once or twice a week. After shampoo, it is best to apply some oily care fluid such as hair oil or hair fat to protect them. Use a special shampoo for dry hair. Try not to blow your hair with a hair dryer. Don’t pull your hair hard when combing or styling to avoid breaking or losing your hair. Women with neutral hair: the frequency of cleaning hair once every two to three days can be adjusted to once every two days or once every three days. If the temperature rises or people often exercise outdoors, their hair is easily stimulated by strong ultraviolet rays and dust in the air. In order to avoid hair damage, they should also wash their hair every day. If you feel that your hair is dry or becomes thinner and softer, you should reduce the number of shampoos and let your hair grow slowly. Also, it’s best not to wash your hair before going to bed. If you want to wash it, wipe it with a dry towel, and then dry your hair with an air dryer before going to bed. In this way, you won’t catch a cold. Shampoo and hair loss are very serious. Under normal circumstances, each person can lose 60 ~ 80 hairs a day. There is often more hair loss when combing and washing. This is because the hair that has not fallen off in the rest period is pulled off, so there is no need to be too nervous. Those hair, even if you don’t wash it, will fall off, but you don’t find it when it falls off. What shampoo is better for hair? No matter how you wash your hair or your face, shampoo and facial cleanser can not achieve the purpose of deep cleaning. No matter how much massage is used. The following figure is a schematic diagram of a hair follicle. It can be seen that the hair follicle has a large opening, but the inside is deep and narrow, and the whole is funnel-shaped. The diameter of the hair follicle opening is μ M or so, the cleaning ingredients cannot be poured in. Therefore, do not superstitious about the efficacy of various shampoos with empty head, and do not believe that they can prevent hair loss and strengthen hair. If you lose a lot of hair when washing your hair, you should pay attention to whether it is hair loss. If it is hair loss, you need timely treatment, otherwise you will easily destroy your life.#媒體人周刊#
