What’s a Cold?
A cold is an infection of the upper respiratory tract. This means that it may affect the nose, throat, and sinuses. A cold virus has in the body and leaves you ill.Most adolescents get between two and four colds per year. That is not surprising — migraines are the most common infectious disease in america, and trigger much more school absences than any other ailment.
What Causes Colds?
Most colds are caused by viruses (known as rhinoviruses) which are in undetectable droplets from the air you breathe or about items you touch. If these viruses gets throughout the protective lining of your nose and throat, then it activates an immune system response. This may lead to a sore throat and irritation, and ensure it is difficult to breathe.Nobody knows precisely why people become infected with migraines at particular times. But regardless of what you see, sleeping or sitting in a draft, or maybe not dressing when it is cold, or going out with wet hair won’t lead to someone to grab a cold.Dry atmosphere — inside or external — can reduce resistance to infection by viruses. And smokers tend to be more likely to get colds than people who do not smoke. Their symptoms will likely be worse, last longer, and become more inclined to cause bronchitis as well as pneumonia.
What Are the Signs and Symptoms of a Cold?
The very first symptoms of a cold are many times a tickle in the throat, a runny or stuffy nose, and coughing. You also may feel really exhausted and also have a sore throat, cough, headache, mild fever, muscle cramps, and lack of appetite. Mucus out of the nose may become thick green or yellow.