In one sentence, describe what the following article is about: Fermented foods and drinks contain beneficial bacteria that help your body digest food easily. Aim to introduce 2-3 servings of these products to your diet per week to benefit your digestive system. They include:  Kefir, a fermented milk product Kombucha, a fermented tea Sauerkraut, a fermented cabbage mixture Miso, a paste made from fermented soy Eating foods that your body has to work hard to digest may result in a worsened stomach ache when you are trying to recover. Stick to simple, complex carbohydrates like bread and rice. Bananas and applesauce are also known to be easy on your stomach. For instance, steer clear of hearty foods like whole grain bread and spinach while your stomach recovers. Stomach aches are usually caused by an inflamed stomach lining so its important to be gentle to your digestive system as you recover. Choose mild foods that are relatively free of spice and seasonings. To avoid any unwanted ingredients in your food, opt to cook your own meals while you get over a stomach ache. Bland meal options like a plain turkey sandwich or an unseasoned chicken breast with rice are good examples. Many people on a typical Western diet get insufficient fiber, and then experience issues like constipation. Foods rich in fiber include such foods as:  Whole grain breads High fiber cereals Fruit Vegetables Fiber enriched foods: These include items such as fiber enriched bars, yogurts, cookies and the like.
Summary: Eat fermented foods to aid digestion. Choose simple, complex carbohydrates that are easy for the body to digest. Avoid spicy foods that may irritate your stomach lining. Eat enough fiber.

Problem: Article: Tune the first string down to an E. If you are using a piano, play an E note and match the low E string to that note. Take it slow and make sure the notes are synchronized. This can be a good technique if your tuner is not chromatic. Chromatic tuners hit all the notes including sharps and flats. Go through each string either using a tuner, piano, or your ear. Play a standard E chord and check to see if everything sounds tuned. Go through each string within a chord, and make sure it sounds in tune. Rely on your ears, but you might need to use a tool.
Summary:
Find a tuner or a piano. Tune the rest of the guitar normally. Adjust the tuning.