Article: If you have an event during which pictures will be taken coming up, and you're nervous your pictures will come out looking stiff, take some time to practice your smile beforehand. Look in the mirror and find your best angle and the right amount of teeth to show. Don't forget to smile with your eyes, too. When you find a smile you love, notice how it feels on your face, so you can replicate it at will. If you're worried that the expression on your face in pictures tends to look fake, pay attention to how it feels next time your face cracks into a genuine smile - like when someone is making you laugh, or your favorite comedy is cracking you up. Ask yourself the following questions that will help you "memorize" the way your authentic smile feels: What feelings are flooding your brain when you flash a real smile? See if you can recreate those when you're in front of the camera. What position is your face naturally taking? If possible, glance in the mirror before your smile fades and make a mental note of what your genuine smile looks like. When it's time to get your picture taken, try to recreate the facial positioning that come together to create your most winning smile. If your eyes tend to be half-closed in pictures, try a little trick to help you look wide-eyed and alert. Just before the photographer takes your picture, let yourself blink for a full second or two before opening your eyes and smiling. You'll be less likely to give in to the urge to blink when the flash goes off. If your teeth are a little dull, there's quick fix to try that requires no preparation: just before you smile, run your tongue over your teeth to wet them. Teeth that are a little shiny will look brighter than dry teeth. The gloss will keep your smile from looking dull. Some makeup artists actually advise rubbing a little vaseline over the front of the teeth to keep them looking smooth and shiny throughout the photo session. If you're worried about the way you look, chances are that negative emotion is going to show up in your smile. You'll end up looking tense and strained instead of natural and happy. Next time you're posing for the camera, ignore the photographer's encouragement to say cheese, and go to your own "happy place." Instead of thinking about how awkward your face must look, think about something that you can't help but smile about. Your positive feelings will shine through, brightening your smile.
Question: What is a summary of what this article is about?
Practice in the mirror. Feel out an authentic smile. Blink before smiling. Wet your teeth before you smile. Don't think too much about how you look.

Some potential risk factors are to do with the healthiness of your lifestyle, but there are some things that you cannot influence or change. There is a significant increase in the rates of stomach cancer of those over 50, and most of those diagnosed are between 60 and 80 years old. Stomach cancer is also more common in men than in women. In the US, stomach cancer is more common in Hispanic Americans, African Americans, and Asian/Pacific Islanders than it is in non-Hispanic white Americans. People who live in Japan, China, Southern and Eastern Europe, and South and Central America are more likely to get stomach cancer than people who live elsewhere. There are significant potential risks associated with your lifestyle and diet. Smoking and drinking alcohol increase the risk of stomach cancer by introducing harmful substances into the body. A diet low in fiber increases the risk of stomach cancer by lengthening the body's exposure time to the carcinogens present in food. Long-term consumption of salted, dried, and smoked food items with high levels of nitrates also elevates your risk. It is thought that being overweight or obese may be a cause of cancers of the cardia (the upper part of the stomach). If you work in the coal, metal, or rubber industry, your risk of stomach cancer may be higher. Workers in these fields are exposed to more carcinogens than workers in other industries. Keep a close record of your personal medical history, and be aware of previous illnesses and treatments you may have had that could increase your chance of later developing stomach cancer. Be especially vigilant if you have a history of Helicobacter pylori infections, chronic gastritis, atrophic gastritis, pernicious anemia, or gastric polyps, as all of these conditions predispose you to stomach cancer. Stomach cancers are more likely to develop in those who have previously had part of their stomach removed in surgery. Stomach cancer runs in families, so find out about your family medical history. However, keep in mind that adopting lifestyle changes, such as following a healthier diet, can help to reduce your risk. If you have a close relative who was diagnosed with stomach cancer, you are at a greater risk than someone who has no family history of stomach cancer. If you are unsure of, or worried about, your risk of developing stomach cancer, get in touch with your doctor. A doctor can help you evaluate your existing risk, as well as give you advice on modifying your lifestyle to help you lower your risk in the future. An early diagnosis can make a big difference to a prognosis, so act quickly if you are concerned.
++++++++++
One-sentence summary --
Consider your age, gender and ethnicity. Evaluate your lifestyle. Understand your personal and family medical history. Talk to your doctor.