Although the changing weather has brought relief from the harsh winter, but with the change in weather, the cases of cold and flu will start increasing rapidly. If you get a cold during this time, it becomes the cause of a big headache.
Flu is an infection of the nose and throat, which is caused by more than 200 respiratory viruses. It spreads rapidly from one person to another. It easily spreads to another person through the sneeze and cough droplets of the infected person. Not only this, it also spreads by touching the infected place. Let us tell you why cold occurs and what is its connection with immunity-
Symptoms of cold
- Runny nose
- Sneezing
- Sore throat
- Headache
- Body ache
- Cough
In severe cases, cold can increase and take such forms-
- Middle ear infection
- Asthma attack
- Sinus infection
- Pneumonia
- COPD
Why does cold occur?
Most infections like colds are caused by rhinovirus. It sticks to the cells present inside the nasal passage, then starts replicating there. This causes the virus to spread rapidly in the upper respiratory tract and thus the infection increases.
Some research suggests that rhinovirus replicates rapidly at temperatures below 37 degrees Celsius. The temperature inside the nasal passage is around 33 degrees Celsius which creates the perfect environment for rhinovirus. However, this research is yet to be confirmed.
During winter or changing seasons, people often stay inside their homes, which does not allow adequate ventilation. This makes the transmission of the infected virus easier.
Vitamin D deficiency weakens immunity. In such a situation, due to weak immunity, the body’s ability to fight the virus becomes weak, due to which the virus attacks rapidly and makes its place in the body.
What to do to avoid cold
People with weak immunity catch Flu very quickly. Therefore, to avoid this, keep the body hydrated, keep a clean cloth on the nose and mouth while coughing or sneezing, do not eat leftover food, wash hands regularly, eat fruits and vegetables rich in vitamin C and minerals, which increases immunity.
