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It is called the "Overview Effect." When astronauts look at Earth from space, they do not see countries, borders, or racial distinctions. What they see is simply a "fragile planet" floating in the vast silence of the universe.

Have you ever wondered if humanity might be losing its way? We fight and clash, destroying our own home, because we fail to see that we are all aboard the same "ship" journeying through the vastness of space.

Perhaps we do not need more new technologies... perhaps we simply need "distance" to realize that peace and the preservation of our planet are the single most important tasks for humanity. Just imagine... if we all looked at Earth from a distance, would we still be in conflict with one another?

Have you ever wondered if a tree falls in the forest and there is no one there to hear it, does it make a sound?

Science answers: No! The universe has no "sound," only "vibrations." What you are hearing right now is your brain converting those vibrations into an experience you can understand. Without the brains of living beings... the entire universe would remain forever silent.

Here is an interesting fact from Hermann von Helmholtz's book *On the Sensations of Tone*: Sound is not an object; it is our body's response to the world around us. What do you think about this? Leave a comment below to discuss!

Have you ever wondered why our salivary glands kick into action the moment we smell or see a lemon? It is because the brain is incredibly smart! It prepares for the sour food by triggering saliva production to protect the mouth and aid digestion.

Why do we have bad breath in the morning? At night, the body produces less saliva than during the day. When the mouth is dry, bacteria multiply rapidly and release an unpleasant odor.Tips to deal with morning breath: 

-Brush your teeth and tongue after sleeping (the tongue is a place where bacteria love to gather!). 

-Drink plenty of water to prevent dry mouth.

Chew sugar-free gum to stimulate saliva production. The little things happening inside our bodies are truly amazing! Do you have any other tips for keeping your breath fresh? Share them in the comments!