9 Strange Things Your Body Does That You Never Knew Were Defense Mechanisms

Our bodies are a complex collection of numerous biological cycles and systems that can often be difficult to fully understand. The body’s set of defense mechanisms constitute one such system. They protect us from harm 24 hours a day, seven days a week, from a whole number of things that could potentially harm us.

Here are nine fascinating things your body does which you may not have even realized were ranked among those defense mechanisms.

Yawning

The main purpose of yawning is to cool down the brain after it’s been overheated or overloaded.

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