So this is a perfect hygiene: according to the scientists, it is impossible to wash every day

When it comes to daily hygiene, from brushing your teeth to evening showers, you can think that already all have long known. But now we want to shake up the familiar things. Heeding the advice of medical associations and professionals, Business Insider decided to describe the best ways to be clean, healthy and sharp vision.

How often should you wash your hair?

The short answer is that nobody should wash their hair every day. In addition, it all depends on your skin type: if you have normal or dry, one or two times a week is enough.

How often should you brush your teeth?

The American dental Association recommends brushing your teeth twice a day for two minutes, though does not specify what time of day to do it. Especially thorough brushing should be before bedtime. Because while you sleep, the activity of the salivary glands is greatly reduced, therefore the teeth are less protected from decay.

When is the best time to apply antiperspirant or deodorant?

The ideal time — before going to sleep. If you use antiperspirant so you give him enough time to blockage of the glands photovaltaic before him in the morning start to go to pot. Most of these funds are for least 24 hours, so don't worry about the possible smell of sweat until the end of the day.

How often should you shower?

It turns out that most of us take a shower too often. According to the dermatologist, it is actually enough to take a shower only once in two or three days, although of course it depends on where you live and how often do sports. When is it better to do morning or evening, depends on many factors. However, if you have oily skin, it would be ideal to take a shower in the evening.

How often should I floss?

The American dental Association recommends flossing once a day, but in August 2016 the recommendation has been questioned, since the effectiveness of dental floss has never been investigated. Therefore, it is possible, flossing is not necessary. So.

Should I use a rinse of the mouth?

According to the National health service of great Britain, the use of liquid mouthwash containing fluoride can help prevent tooth decay, but this need not be done immediately after brushing your teeth. This action is much more optional than brushing your teeth, and it is necessary not for all.

It depends on how long you want them to see, but enough to do it again in a week or two. Just make sure you do not leave rough edges that can catch on something and possibly break a nail.

How often you need to clean your glasses?

According to Optometry Australia, as often as required to see well. Only do not use your shirt. Not a must-have fashion spray — enough dishwashing detergent and water. Wipe your glasses clean cotton cloth.

How often should I change cartridge shaving?

Of course, it depends on the razor, but if you feel that the blades pull the skin, probably, they are blunt and it's time to replace cartridge. In order for the blade sharp for as long as possible, be sure to rinse them with hot water after use and let air dry so they are not rusted.