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Health

The body, the mind, medicine, and staying well. 7 answers

Close-up illustration of neurons and nerve connections
Can the Human Brain Run Out of Memory?

The brain has physical limits, but it does not fill up like a hard drive. Memory depends on attention, encoding, storage, and forgetting.

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Rolled gauze bandage on a white background
Why Do Wounds Itch When They Are Almost Healed?

Healing wounds may itch because inflammation, histamine, dry scabs, and itch signals can happen while skin repairs itself.

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baby, asleep, child
Should we edit the human genome to eradicate genetic diseases?

Should we edit the human genome to eradicate genetic diseases? Explore the ethical dilemmas and potential benefits of this powerful technology.

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lights, lamps, lanterns
Does reading in dim light actually damage our eyesight?

Reading in dim light won’t damage your eyesight but can cause eye strain. Learn why this myth is false and how to prevent eye discomfort.

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coffee, caffeine, beans
Coffee or tea: Which beverage offers more health benefits?

Discover the health benefits of coffee and tea, comparing their caffeine levels, mood effects, and antioxidant properties to help you decide which beverage…

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face, woman, old
What is the bottleneck to the limit of human lifespan?

Discover the factors that limit human lifespan and learn about the latest research on aging and longevity.

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chemistry, crown, coronavirus
What are the main challenges in developing an HIV vaccine?

Learn about the major obstacles hindering the development of an effective HIV vaccine, including the virus’s rapid mutation, ability to hide, lack of a…

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