This is how our cells balance body temperature

Dear Diary,

Today I would like to tell you how we cells balance our body temperature, especially now that the human world is constantly changing between warm and cold. People call this the "change of seasons". The days are slowly getting shorter and colder again.

The morning after we woke up, it was quite cold. We cells immediately noticed that the body we are in needed more warmth. The mitochondria, our power plants, were activated to produce energy, which is released as heat. This is important for our human to feel warm and comfortable. In addition, the blood vessels in the skin contract to keep the heat in the body.

Then it got warmer as the day went on when the sun came out. To prevent our human from getting too hot, we started producing sweat. The sweat evaporates from the skin and cools the body. The blood vessels also dilate to bring more blood to the surface of the skin, where it can be cooled more easily.

In the evening, when the temperature drops again, the process goes in the other direction. We have to make sure that our humans body does not freeze. Heat production by the mitochondria increases again and the blood vessels contract again to keep the heat in the body.

It is a constant back and forth, but together we manage to keep the body temperature always in the right range.

Stay cell fresh,

Zellis