The human body is a complex system that can be difficult for us to understand. For instance many people don’t fully understand their body’s defense mechanisms, which include stretching and yawning. These defense mechanisms have protected you since the day you were born, and they will continue protecting you for the rest of your life. They never take a break or stop– but how do they protect your body? Here are nine body defense mechanisms that could save your life.
You sneeze whenever your nasal passages contain too many allergens, microbes, and irritants. This is basically your nose’s way of taking out the garbage!
You instinctively stretch in the morning to prepare your body for the effort it will be making over the next twelve hours. Stretching restores blood flow while working your muscles, so it ensures that your muscles are ready for the day ahead.
There are lots of theories about why people yawn, but the main purpose of yawning is to cool your brain down if it is too warm.
4. Myoclonic Jerks
Do you ever twitch while you are falling asleep? These twitches are called myoclonic jerks, and they happen when your breathing falls and your pulse slows down as your brain thinks that you may be dying. Your brain tries to save with you with a jolt, which is very useful– but it can feel pretty strange, and it might leave you feeling fully awake.
When you get cold your body creates goose bumps to help reduce the amount of heat that you lose. This makes it easier to stay warm in cold environments.
6. Memory Loss
Sometime memory loss occurs when people go through unpleasant experiences. This is essentially your brain protecting you from trauma, which is truly amazing.
Tears have two main purposes; they protect our eyes from foreign objects, and they also offer an emotional defense. Scientists believe that humans cry when they are upset as it can distract them from the emotional pain they are feeling.
8. Wrinkly Fingers
Humans get wrinkly fingers in wet environments because their bodies are adapting to a slippery environment; the wrinkles improve grip so that you are less likely to fall and hurt yourself.
Hiccuping occurs when people eat too quickly, and it helps to slow down our eating to make digestion easier.