Too Hot, Too Cold

 

All enzymes in the human body work best at 37 degrees Celsius (average body temperature). The body will adjust itself if it’s too hot or cold. For example, if the body is too cold:

 

  • The hair on the skin will stand up to create an insulating layer of air.
  • No sweat is produced.
  • The body shivers to release energy to warm the body.
  • Blood vessels near the surface of the skin constrict, so less blood is in contact with the colder outer layers of the skin.

 

If the body is too hot:

  • The hair on the skin will lie flat.
  • Sweat is produced.
  • Blood vessels near the surface of the skin dilate, so more blood is in contact with the colder outer layers of the skin.

1 2 3 4

Close Menu