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biology

Sensitive skin

Sensitive skin is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Sensitive skin rather than just read about it. In short: Sensitive skin is a skin condition in which skin is prone to itching and irritation experienced as a subjective sensation such as when using cosmetics and toiletries. When questioned, over 50% of women in the UK and US, and 38% of men, report that they have sensitive skin.

Sensitive skin — main illustration
Sensitive skin — illustration

Key takeaways

  • Sensitive skin belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Sensitive skin to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Sensitive skin from memory before moving on to harder problems.

Reference excerpt

Sensitive skin is a skin condition in which skin is prone to itching and irritation experienced as a subjective sensation such as when using cosmetics and toiletries. When questioned, over 50% of women in the UK and US, and 38% of men, report that they have sensitive skin.

See also Contact dermatitis List of cutaneous conditions

References

Further reading Leslie Baumann (2009), "Sensitive skin", Cosmetic dermatology, McGraw-Hill, p. 94, ISBN 978-0-07-149062-7 Olivier de Lacharrierre (2010), "Self-perceived sensitive skin", Cosmetic Dermatology, John Wiley and Sons, p. 22, ISBN 978-1-4051-8635-3 Enzo Berardesca; Joachim W. Fluhr; Howard I. Maibach (2006), Sensitive Skin Syndrome, Taylor & Francis, ISBN 978-0-8493-3058-2

Illustrations

Sensitive skin: A 1914 photograph for Emily Lloyd's dermatology book detailing the benefits of massage for all skin types; the c. 1870 text reads, "Extremely sensitive skins sometimes become irritated under even the lightest treatment but these are exceptions to the rule."[1][2]
A 1914 photograph for Emily Lloyd's dermatology book detailing the benefits of massage for all skin types; the c. 1870 text reads, "Extremely sensitive skins sometimes become irritated under even the lightest treatment but these are exceptions to the rule."[1][2]

Worked examples

Example 1 — a first encounter with Sensitive skin

Start with the simplest possible case. Write down what Sensitive skin claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Sensitive skin before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Sensitive skin ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Sensitive skin

In research
Sensitive skin appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Sensitive skin in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Sensitive skin is common in secondary-school and first-year university syllabi. It links to neighbouring topics Dermatology stubs, Skin anatomy, so understanding it makes those chapters shorter.
In everyday life
Look for Sensitive skin outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Sensitive skin in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Sensitive skin means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Sensitive skin out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sensitive skin in simple terms?

Sensitive skin is a skin condition in which skin is prone to itching and irritation experienced as a subjective sensation such as when using cosmetics and toiletries. When questioned, over 50% of women in the UK and US, and 38% of men, report that they have sensitive skin.

Why does Sensitive skin matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Sensitive skin?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Sensitive skin.

Tags

  • Dermatology stubs
  • Skin anatomy

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