Article: Don't bleach hair that is freshly washed. The bleaching process will dry your hair out significantly, potentially causing damage and breakage. Your hair's natural oils will prevent this. A freshly-washed scalp is also much more sensitive and will itch more during bleaching. Your bleach kit will have two main components: dry powdered bleach and a hydrogen peroxide solution. Mix the two according to the ratios or instructions on your dye kit, using a tint brush or plastic spoon.  Follow the instructions on your kit if they are different from what is described here. Developers come in different strengths rated by numbered "volumes." If your hair is already fairly light, use volume 10. Volume 20 is for darker blondes, volume 30 for light browns, and volume 40 for darker browns and black.  Higher volumes can be more damaging to your hair, but they can also lighten it faster. If you've never bleached your hair to platinum blonde before, you will need to know how long it takes your hair to lighten. Select a small amount of hair close to the roots at an inconspicuous place and section it off. Brush on some bleach using a tiny brush. Let the bleach set and check the strand every 5 to 10 minutes. If your hair is not light enough after an hour, you will need to do multiple rounds of bleaching. Rinse the bleach away between rounds and reapply it. To minimize damage, do not leave bleach in your hair for over an hour. Use a tint brush to apply your bleach mixture evenly to your hair. Work in sections, brushing in the direction your hair grows.  Start from the very back of your head and work your way forward, leaving the sections of hair that frame your face for the end. If your hair is thick, flip up each section to expose the next layer of hair underneath and apply there, too. Leave about a one-inch section around your roots to do last, after the face-framing strands. The heat from your scalp will cause your roots to bleach a little faster than your normal hair. Try to go as quickly as possible to ensure an even color. Refer back to the results of your strand test to determine how long you should leave the bleach in your hair. Cover your hair up with either a shower cap or plastic wrap while you wait. Keep in mind that a little itchiness on your scalp is normal. Use warm water without shampoo. Be very careful to not get any bleach in your eyes as you rinse. If possible, ask someone to rinse your hair for you in a sink while you look up as if you were in a salon. If you aren't immediately moving on to the next step, allow your hair to air dry. Blow drying can further strip your hair of moisture, potentially exacerbating any damage the bleach has caused.
Question: What is a summary of what this article is about?
Wait a day or two after your last shampoo. Mix bleach powder with developer. Do a strand test. Apply the bleach. Let the bleach sit. Rinse out the bleach.
Article: The tongue's unique texture and large surface area makes it host to millions of bacteria, which can travel to the teeth and gums and cause cavities and gingivitis.  The teeth gather plenty of bacteria themselves, but unlike the teeth, the tongue is not a smooth surface. It follows that even more bacteria accumulate in the taste-buds and small pits on the tongue.  Just rinsing the mouth with water is insufficient to remove the bacteria on the tongue, primarily because the bacteria gather in what is called a "biofilm"-- a sticky, gooey, living layer of bacteria. It must be disrupted by rubbing or scraping to fully remove it. The bacteria that live on the tongue cause a chemical reaction that produces volatile sulfur compounds, which results in bad breath.  Tongue brushing can also remove traces of odorous foods like garlic and onions, which can also improve your breath. Many people with bad breath are not aware that they have it. Its a good idea to practice good oral hygiene, including regularly cleaning the tongue, in order to reduce the chance that you are one of them. Certain foods and health conditions can cause a colored or filmy appearance on the surface of the tongue. Brushing the tongue can eliminate this problem.  Foods containing dyes like cupcakes, lollipops, or popsicles can temporarily dye the surface of the tongue. Brushing the tongue can reduce the coloration of the tongue, making it less noticeable to others. Some illnesses like oral thrush or syphilis can cause a buildup of bacteria or fungi on the tongue that cause a filmy, white appearance. In some cases, the white film cannot be brushed off. Be sure that you see your doctor if you suspect that your filmy tongue is caused by an illness.  Certain medications like antibiotics or Pepto-Bismol as well as certain illnesses can also cause a startling discoloration of the tongue called "black hairy tongue," which is caused by an overgrowth of yeast in the mouth. The condition is not serious and the discoloration can be brushed off with a toothbrush or washcloth, although it might be a good idea to see your doctor to determine the cause.
Question: What is a summary of what this article is about?
Prevent bacteria build-up. Prevent bad breath. Prevent discoloration.