6 . Waking up with “morning breath” is quite normal, and it usually goes away after eating and drinking, or brushing your teeth. Your breath can also smell different after drinking coffee or alcohol, or eating spicy food, garlic or onions—sometimes you may think you've got bad breath when actually it's quite okay.

However, if you're concerned or embarrassed about halitosis（口臭）—ongoing bad breath, a trip to the doctor or dentist should be in order, because there could be something else going on with your health.

Your mouth is the first place to investigate the origin of bad breath. When smell-causing bacteria attack food after eating, they release strong-smelling sulphur（硫）. People with halitosis may have more of these bacteria present in their mouth. Additionally, not cleaning, or brushing your teeth properly leads to a build-up of harmful substances on the teeth, and can cause some swelling and strong smell in the mouth. Medical conditions that reduce the amount of saliva（唾液）in the mouth can cause problems too. That's because saliva keeps the mouth just wet, reducing strong smell.

Strong-smelling breath can be a symptom of medical conditions such as mouth or throat infections. A pear-smelling breath caused by high blood sugar, which occurs as a result of uncontrolled diabetes（糖尿病）, can also indicate some other serious diseases.

If you're worried how your breath smells at close range, nutritionist Katrina Pace comes to the rescue with simple tips. "Keep away from sharp-tasting food, drink and alcohol," Katrina said. "Drinking water regularly and chewing fresh parsley（欧芹）can also help."

Faces communicate feelings. They can tell people if we are happy, sad, or confused. Faces have another use, too. Like your unique fingerprint, your face can identity you. Unless you have an identical twin, there is no one else in the world with your face. By matching the code of any new lace to the codes for faces that are already in the database, nowadays facial-recognition technology can probably pick up the same person.

Now, organizations are using your face for many different purposes. Police department uses facial-recognition databases to identify people. For example. The U. S. police analyzed the data from the facial-recognition technology to look for terrorists at a large sports event in Florida. Another use is for preventing identity theft. Banks will use a customer’s “face-print” for identification instead of an ID card, which are easy to steal.

Not everyone is happy with these developments. Many people feel that facial-recognition technology can be an invasion of privacy. For example, advertisers are using the technology to analyze people’s laces. When people walk by an outdoor advertisement, the sign takes their picture. It analyzes the picture and suggests products for these people to buy, such as makeup. People have another concern: A stranger may take your picture without your knowledge, match this photo to one on a social media website, and obtain your personal information such as age, interests, and even address.

Experts hope that we will find ways to limit the risks of the technology. It’s certain that as the new technology develops, we will need new laws to protect people. Meanwhile, experts have a suggestion: Simply tilt your head 15 degrees to the side when someone takes your picture. Facial recognition doesn’t work on faces in this position!

8 . First-Aid to Stop Nosebleeds

Nosebleeds occur when the inner lining of one's nose is hurt or dry. Although a nosebleed maybe frightening, most conditions that cause nosebleeds are not serious or life threatening.    1    

Position your body. To begin, sit down, since it is more comfortable than standing. Tilt head forward so that the blood drains through the nostrils.    2    A towel can be held under your nose to collect the blood. Do not lie down as this can cause blood to pass down the throat.

Press the nose. Use your thumb and index finger to hold your nostrils for 5 to 10 minutes while you breathe through your mouth. This puts pressure on the part of your nose that's bleeding and can make the blood stop flowing.    3    

Cool yourself down. Lowering your body temperature can help reduce the blood flow to your nose. To do this, place ice cubes in your mouth. This helps achieve a lower temperature sooner than cooling the external part of the nose.    4    This is more effective than placing a cold compress over the nose. You can also suck on a popsicle to achieve the same result.

    5    After bleeding has stopped, you can clean the area around your nose with warm water. After you have cleaned your face, you should rest for a while. This is to help to prevent further bleeding.

9 . Take Care of Your Eyes

Many of us don’t pay attention to the importance of eye care. It’s said that if you take care of your body, then you can be healthy.     1     Natural eye care should be put in a number one place.

There are several reasons leading to poor eyesight like not enough food, gene (基因) and aging.     2    If you happen to work in front of the computer, it is best to take a rest every once in a while.

Something dirty can lead to redness and they will make you feel uncomfortable. It is bad for your eyes, too. If this happens, the best way is to clean your eyes by using cold water.     3     For example, sunglasses are not just fashion but they can also serve as a great way to protect your eyesight from UV rays.

Eating healthy foods will do good to your eyesight. Remember that vitaminsA, C and E are good for eyes. Try to eat food groups that have these vitamins. And you should do eye exercises because exercise protects your eyesight, too. If a person exercises regularly and eats the right kind of food,     4    .

    5     Being happy all the time can be helpful to a person’s eyesight, too. In a word, eye care is very important, no matter how old a person is.