Body

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Articles about Body

5,429 published items.

How does the immune system fight nCoV?
Life

How does the immune system fight nCoV?

The immune system mobilizes the T-cell army and macrophages in the fight with nCoV, but if overworked, it will bounce back to the body.

March 16, 2020
How does skin heal wounds?
Health

How does skin heal wounds?

The largest organ of the body is not the liver or the brain but the skin, with a total area of ​​about 2 square meters in adults.

March 11, 2020
Why are some trees hollow?
Biology

Why are some trees hollow?

We often see some old trees, although the trunk is hollow, but the leaves are still green. So how do trees survive when their trunks are empty?

March 1, 2020