Causes of common cold
The virus
One reason why there is no cure for common cold deasease is that more than 200different viruses can cause cold symptoms.such as rhinovirus,seldom produce serious illnesses.
Other ,such as respiratory syncytial virus(RSV),produce mild infections in adult but can lead to severe lower respiratory tract infections in young children.
Rhinovirus cause an estimated 30 to 50 percent of all colds.Scientists have identified more than 100 district rhinovirus types. Rhinovirus grow best at temperature of about 91°F.
Scientists think 🤔 coronaviruses cause about 10 to 15 percent of all adult colds.They bring on cold primarily in the winter and early spring.
Research still haven't identified the causes of 20to 30 percent of adult of colds, presumed to be viral.
The cold season
Seasonal changes in relative humidity also may affect the occurrence of colds. The most common cold-causing viruses survive better when humidity is low. Cold weather also may make the inside lining of your nose drier and more vulnerable to viral infections.
Other factors
Although a connection exits between the number of cases of the common cold and the fall and winter season,there is no experimental evidence that exposure to cold temperatures increase the chances of getting a cold.
On the other hand, several reasearch studies show that people who exercise regularly have a significantly reduced number of respiratory tract infections,such as common cold, compared with those who don't exercise.
Symptoms of common cold
Symptoms of common cold usually begin 2 to 3 days after infections.
- Mucus buildup in the nose
- Difficulty breathing through nose
- Swelling of sinuses
- Sneezing
- Cough
- Headache
- Tiredness
- Resting in bed
- Drinking plenty of water 💦
- Gargling with salt water
- Taking aspirin or acetaminophen_Tylenol

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