Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

[EX Q]: Any activity can count as cardio/aerobic exercise as long as it meets the 3 requirements above (frequency of 3-5 days a week, moderate intensity, and lasts at least 20 minutes per session). It's important to not confuse "activity" with "exercise." Not everything you do that's activity is the same thing. Adults should get at least 150 minutes of moderate-intensity exercise per week. 1 Exercise recommendations can be met through 30-60 minutes of moderate-intensity exercise (five days per week) or 20-60 minutes of vigorous-intensity exercise (three days per week). Use each of the methods periodically to add variety to your workouts. 1 Continuous training is the most common method of aerobic exercise. It involves sustaining one exercise intensity for several minutes 20-60 minutes (or more for long-distance training) at a time. Performing the recommended 150 minutes per week of cardio exercises, 30-60 minutes of low to moderate intensity exercise per day for 5 days or 20-30 minutes of vigorous-intensity exercise 3 times per week is enough to reap the benefits and provide you with noticeable results. Check with your doctor before starting an exercise program. 1 Get more about exercise safety tips for beginners. 2 Choose an activity you enjoy. You are more likely to stick with it. 3 Always warm up for at least 5-10 minutes before starting your activity. 4 Start slowly and listen to your body. Go at a pace that feels good to you. Each week you can increase speed or duration, but do not increase it by more than 5-10% each week. As your fitness level increases gradually, increase the number of sessions per week and the intensity or length of the sessions until you are performing 3-5 sessions of 60 minutes a week at a moderate to high intensity. Continuous training is the most common method of aerobic exercise. 1 It involves sustaining one exercise intensity for several minutes 20-60 minutes (or more for long-distance training) at a time. 2 Interval training involves alternating between higher and lower intensity intervals throughout one workout. Frequency: Number of aerobic exercise sessions per week. Aim for a minimum of 3 days per week with no more than 2 days off between sessions. Gradually work your way up to 5 or 6 days per week. Frequency is especially important when it comes to weight loss since more cardio sessions will help you burn more calories. Give yourself at least 1 to 2 days off from aerobic exercise each week. Intensity: How hard you should exercise during each session Aerobic exercise should take place at a "moderate" intensity level (not too easy, not too hard). Here are some additional benefits of aerobic exercise: 1 Reduce belly fat. 2 Promotes brain growth. 3 Prevents stress. 4 Promotes focus. 5 Interrupts anxiety. 6 Regulates depression. How Much Aerobic Exercise Should You Do? When considering the guidelines for aerobic exercise, keep the FITT principles in mind (Frequency, Intensity, Time and Type). Frequency: Number of aerobic exercise sessions per week Aim for a minimum of 3 days per week with no more than 2 days off between sessions. Query: how long should you perform aerobic exercise to obtain cardio benefit
[EX A]: Adults should get at least 150 minutes of moderate-intensity exercise per week.

[EX Q]: If you want to know how long your food poisoning will last, then you need to figure out which type of food poisoning you likely have. If you are feeling ill, take a look at the following food poisoning duration chart. These symptoms typically last for a few days or longer. Symptoms that last for more than 2 weeks, however, are a sign of chronic diarrhea. Call your doctor if you think that you have chronic diarrhea or if you see blood in your stool. When Will Symptoms Appear? When you were a kid, did you like to chant diarrhea, diarrhea to make your friends laugh? Now you probably associate the word with discomfort and embarrassment because having diarrhea is no fun. But nearly everybody gets it once in a while, usually due to gastrointestinal infections. There are three general classifications of diarrhea defined by how long the condition persists: 2 Acute Diarrhea. This is when the illness only lasts between several hours to two weeks. According to Medical News Today, acute diarrhea is defined by world guidelines as the presence of three or more abnormally loose or watery stools in the preceding 24 hours. 3 It is usually caused by infection bacterial, viral or parasitic. 4 Medications, especially antibiotics, are another common cause of acute diarrhea, because they upset the balance of good and bad bacteria in your gut. 5,6 Persistent Diarrhea. It is when you suffer from diarrhea for two to four weeks. The most common causes of persistent diarrhea are listed below: 7,8 Diarrhea that lasts for more than two days in an adult or one day in a child, or which occurs with an infant. Severe diarrhea. Frequent vomiting. Blood in either stool or vomit. Extreme cramping or abdominal pain. Dehydration, which can include excessive thirst, little urination, sunken eyes, and dizziness. Black or tarry stool. The incubation period for a gastrointestinal infection depends on the particular germ causing it. For example, the Shigella incubation period is usually 2 to 4 days, but the period for viral infections ranges from 4 to 48 hours. Parasitic infections generally have longer incubation periods; for instance, in a Giardia infection, symptoms can take from 1 to 4 weeks to appear. Then, depending on the type of germ and the person's overall health, a diarrheal infection can last for a few days or a few weeks. The word diarrhea with its odd spelling is a near steal from the Greek diarrhoia meaning a flowing through. Diarrhea can be acute, that is, sudden in onset and short-lived, or it may be prolonged. Most acute episodes of diarrhea are due to viral infections and last three to five days. Prolonged diarrhea -- lasting more than four to six weeks -- usually is due to an underlying gastrointestinal disease, the most common of which are diseases that cause inflammation and malabsorption of food. If your sickness does not seem to match one of the five most common types, you may have a rare form of food poisoning. While some of these can last for as little as a day, others (i.e. hepatitis and cyclosporiasis) can last for as long as several months. By narrowing down the foods you ate and your symptoms, you can determine just how long you have to wait to be healthy again. In most cases, you can expect to be feeling better within 10 days. Evaluation by a physician generally is needed if diarrhea is severe, results in dehydration, persists for more than a couple of weeks (chronic diarrhea), or if there is a high fever or blood in the stools. Here are a few types of GI infections that you may have heard about: 1 Salmonella bacteria lead to between 1 and 5 million cases of diarrheal illness in the United States each year. These bacteria, a major cause of food poisoning, are frequently found in raw chicken or eggs. Query: how long does diarrhea last when sick
[EX A]: Most acute episodes of diarrhea are due to viral infections and last three to five days.

[EX Q]: A wind turbine works on a simple principle. This animation shows how energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity. Wind turbines are mounted on a tower to capture the most energy. Most people think of generating electricity with wind turbines when the subject is wind energy. There are many other ways we can harness the kinetic energy in the wind (also known as motional energy). The energy in the wind has been used in sailboats for thousands of years. Midwest Rural Energy Council Wind turbines generate electrical power in the same way as all other generation technologies. The only difference is in the source of the mechanical power supplied to the electrical generator: wind, rather than a diesel engine or steam turbine, pro vides the energy. Blades capture energy in the wind and turn the turbines. Control Where exactly does wind energy come from? How can we generate electricity from the wind? What are some other uses for wind energy? If you are looking to find answers for questions like these, you are at the right place. What Is Wind Energy? By the term wind energy we mean air in motion (kinetic energy). Generating Electricity from Wind Energy With Wind Turbines. A wind turbine is in many ways the opposite of a fan. Instead of providing the electricity to get the fan to rotate, wind rotates the turbine to generate electricity. So, how exactly does wind energy produce electricity? The rotor blades on a wind turbine catches the kinetic energy in the wind and transfers it via a rotor shaft to the generator. The wing blades can be rotated and adjusted to the wind direction and strength, for maximum utilization of energy. When the rotor spins, the power is transferred via the drive shaft and gearbox. Generating Electricity from Wind Energy With Wind Turbines A wind turbine is in many ways the opposite of a fan. Instead of providing the electricity to get the fan to rotate, wind rotates the turbine to generate electricity. Wind itself does not generate electricity, but using wind turbines it is converted into mechanical energy and the mechanical energy is converted into electrical energy. Simply stated, a wind turbine works the opposite of a fan. Instead of using electricity to make wind, like a fan, wind turbines use wind to make electricity. See how wind turbines turn the force of wind into electricity. Learn how wind and hydro are renewable energy resources being integrated to meet Northwest ene... See how wind turbines turn the force of wind into electricity. Learn how wind and hydro are renewable energy resources being integrated to meet Northwest ene... Skip navigation Energy can be changed from one form of energy to another. The energy of the air moving is changed to the energy of the blades spinning. The blades turn a generator. The generator produces electricity. ( A generator works by its electric wiring traveling through a magnetic field). Wind is a source of Kinetic energy resulting from differences in atmospheric pressure. curve for a wind turbine indi cates the power produced across the entire operating range of the wind turbine. Wind turbines have a cutin wind speed, typi cally about 8 to 9 mph, when they will start to produce a small amount of electricity. Below the cutin wind speed there is not enough energy in the wind to produce electrical power. Wind Query: how does wind generate electricity
[EX A]:
Wind uses wind turbines to converted into mechanical energy and the mechanical energy is converted into electrical energy.