Placeholder Image

Subtitles section Play video

  • Topic: Pathogens.

  • Why do we get fever?

  • So that we can take a holiday from work.

  • No.

  • Fever is a protective response of our body to fight against pathogens such as bacteria, viruses and fungi.

  • These pathogens cause diseases.

  • Hence, when pathogens enter our body, the immune cells such as white blood cells produce chemicals called pyrogens which are released into the bloodstream.

  • I thought like movies, they are released in theatres.

  • Please, pay attention.

  • Hypothalamus, which is a small part of our brain, regulates our body temperature.

  • However, when these pyrogens reach the hypothalamus.

  • It starts to raise our body temperature, thus producing fever.

  • Now, one of the reasons for producing this fever is that many pathogens cannot survive at high temperatures.

  • Thus, they die and we remain safe.

Topic: Pathogens.

Subtitles and vocabulary

Click the word to look it up Click the word to find further inforamtion about it