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      Lesson details

      Learning outcome

      I can describe what depressants are, explain the risks of taking them and know how to respond if someone is having a bad reaction.

      Key learning points

      1. A depressant is a drug that slows the central nervous system down to decrease the neural activity in the brain.
      2. Depressants lower blood pressure, heart rate and respiration.
      3. Illegal depressants include heroin, nitrous oxide and cannabis.
      4. The recovery position is useful for someone who is unconscious.
      5. There are risks associated with depressants, including physical and mental health effects and legal consequences.

      Keywords

      • Depressant - a substance that slows down the brain and body’s functions, reducing alertness and activity levels

      • Inhibition - a feeling that makes a person self-conscious and unable to act in a relaxed and natural way

      • Recovery position - a safe way to place an unconscious person on their side to keep their airway open

      Common misconception

      Depressants just slow people down.

      Depressants often affect a person's sense of inhibition first. This means they may do things they would not normally do.

      Teacher tip

      You should speak to your RSHE lead before delivering this lesson.

      Content guidance

      Depiction or discussion of sensitive content

      Depiction or discussion of sensitive content

      Depiction or discussion of sensitive content

      Depiction or discussion of mental health issues

      Supervision

      Adult supervision required

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Match the term to its correct definition.

      Correct Answer:nervous system,the body’s command system made up of the brain, spinal cord and nerves
      Correct Answer:dependency,when a person's body/mind relies on a drug to feel/function normally
      Correct Answer:stimulant,a substance that speeds up the brain and body’s functions

      Q2.
      There are legal stimulants, such as and nicotine.

      Correct Answer: caffeine

      Q3.
      Which of the following is not a characteristic of stimulants?

      they raise heart rate
      Correct answer: they lower blood pressure
      they increase respiration
      they reduce sleepiness

      Q4.
      Cocaine and methamphetamine are examples of stimulants.

      Correct Answer: illegal, Class A, Class A illegal

      Q5.
      Match the type of risk to the potential consequence(s) associated with it.

      Correct Answer:legal risks,getting a criminal record, spending time in prison
      Correct Answer:financial risks,getting into debt due to drug use
      Correct Answer:social risks,losing friends because of drug use
      Correct Answer:career risks,some jobs cannot be accessed if someone has a criminal record

      Q6.
      If someone is having a bad reaction to a drug, what should you do?

      Correct answer: stay calm
      give them space for the drugs to wear off
      Correct answer: find out what they have taken
      Correct answer: get medical help
      Correct answer: stay with them

      6 Questions

      Q1.
      Match the word to the correct definition.

      Correct Answer:depressant,a substance that slows down the brain and body’s functions
      Correct Answer:inhibition,a feeling that makes a person self-conscious & unable to act naturally
      Correct Answer:recovery position,a safe way to position an unconscious person

      Q2.
      Which of the following is an example of a legal depressant?

      cannabis
      Correct answer: alcohol
      heroin
      gamma hydroxybutyrate

      Q3.
      Which of these describes the effect depressants have on the body?

      they raise blood pressure and heart rate
      Correct answer: they lower blood pressure, heart rate and respiration
      they increase respiration and alertness
      they speed up the central nervous system

      Q4.
      A depressant that is an example of a Class drug is cannabis.

      Correct Answer: B

      Q5.
      If you find someone unconscious and breathing, you should and ...

      Correct answer: put someone in the recovery position
      let them sleep it off
      do CPR
      Correct answer: call for help
      shake them to wake them up

      Q6.
      Where could someone get reliable help or advice about drugs?

      Correct answer: family doctor or GP
      a random page on the internet
      a friend
      Correct answer: Talk to FRANK
      Correct answer: NHS website

      To help you plan your 9 RSHE (PSHE) lesson on: Depressants, download all teaching resources for free and adapt to suit your pupils' needs...