240 questions and answers in this section
Explain why regular physical activity can reduce the risk of heart diseases.

Explain why regular physical activity can reduce the risk of heart diseases.

The heart is primarily a muscle; when you exercise regularly, it becomes stronger and more efficient. Each beat pumps more blood, so the heart works...

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Explain why some people feel tingling in their hands and feet after engaging in intense exercise.

Explain why some people feel tingling in their hands and feet after engaging in intense exercise.

When you exert yourself intensely, your body reacts by increasing its temperature. To dissipate this excess heat, it directs more blood to your skin, especially...

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Explain why can carrots help improve vision?

Explain why can carrots help improve vision?

Carrots mainly contain beta-carotene, a natural pigment that gives them their bright orange color. This pigment belongs to the carotenoid family, recognized for their top-notch...

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Explain why do we yawn when we see someone else yawning?

Explain why do we yawn when we see someone else yawning?

Seeing someone yawn often triggers in us a reflexive yawn, almost uncontrollable. This imitation occurs completely automatically, without us even consciously thinking about it. Our...

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Explain why sugar is addictive?

Explain why sugar is addictive?

Our brain considers sugar as a quick and efficient source of energy: when we ingest it, it immediately releases dopamine, a substance that activates our...

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Explain why listening to the sound of rain can promote relaxation?

Explain why listening to the sound of rain can promote relaxation?

The sound of rain is composed of a variety of frequencies ranging from low to high sounds. Our ears perceive this sound combination as natural...

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Explain why the touch of an ice cube on the skin burns?

Explain why the touch of an ice cube on the skin burns?

When your skin comes into contact with extreme cold, like an ice cube, your body reacts quickly to limit damage. Immediately, the surface blood vessels...

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Explain why the Codex Alimentarius is important for global food security.

Explain why the Codex Alimentarius is important for global food security.

The Codex Alimentarius brings together concrete and common international standards on food safety. The idea behind all this is that no matter where you live...

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Explain why are carrots good for health?

Explain why are carrots good for health?

Carrots are mainly known for their contribution of vitamin A, mainly due to the beta-carotene they contain in large quantities. This orange pigment is converted...

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Explain why sleep is necessary for the body?

Explain why sleep is necessary for the body?

During the night, your body plays doctor: it repairs your damaged muscle tissues, renews your cells, and regenerates your skin. It is during deep sleep...

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