Many ways - mainly through touch and inhaling which why it is important to wash your hands regularly
Because a cold-causing virus has been introduced to your body.
cuz it do
No, it rises.
The common cold is a virus. Viruses have to run its complete life cycle. Penicillin is an antibiotic, used to rid the body's system of bacteria.
Rather than the common term, cold-blooded, they are ectothermic. Which means they take their body temperature from their surrounds.
The HIV virus fights and kills white blood cells. These cells help the body to fight off other "invaders" like the cold virus. If they are weak or absent, the body will be damaged by something that is usually not a problem, such as a common cold.
The mucus is your body's defense against germs, you body needs mucus to function properly. Not only does it trap bacteria and irritants in your nasal passages, it basically keeps your stomach from digesting itself. A cold just makes your body produce more mucus.
Your nose gets stuffed first
Cold blooded animals and warm blooded animals have the ability to regulate body temperatures in common. They both have adapted to their respective environment.
Viruses replicate inside respiratory cells
The HIV virus fights and kills white blood cells. These cells help the body to fight off other "invaders" like the cold virus. If they are weak or absent, the body will be damaged by something that is usually not a problem, such as a common cold.
Yes, sweating is the way your body cools itself and using a fan will hurry the process, however when you get cold turn off the fan so that you do not get a cold because that's a common way the common cold is formed.