Vocabulary

• such as: For example; like
• afternoon tea: A light meal typically eaten between 3pm and 5pm, consisting of tea, sandwiches, cakes, and scones.
• around the world: In or to many countries.
• catch on: To become popular; start to be used
• at least: As a minimum
• at once: Immediately; without delay
• due to: Because of; owing to
• cognitive: The process of knowing and remembering
• fatigue: Breaking due to being moved or bent many times
• equivalent: Equal to something in value, use or meaning
• insomnia: Inability to sleep for many nights
• consider: To think carefully about something
• consume: To eat, drink, buy or use up something
• beverage: A drink other than water
• consumption: The act of buying and using products
• substance: Essence of; most basic or central qualities
• lethal: Causing or able to cause death
• compound: Series of buildings that are walled or fenced off
• concentrate: To cause to be present in large amount or number
• increase: To make or become larger in size or amount
• stimulate: To arouse or excite emotionally
• occur: To come to pass or to happen
• bulk: Most of something; majority of
• brain: To strike someone forcefully on the head
• population: Number of people who live in a country, area etc.
• regulate: To control something with rules or laws
• result: Something produced through tests or experiments
• seek: To ask someone for help
• responsible: Being the cause of something that has occurred
• performance: Act of doing something
• administration: Act of giving e.g. medicine to a patient
• nervous: Concerning the system of nerves in the body
• risk: To do something potentially dangerous or foolish
• due: When something is required or expected
• provide: To make available; to supply for use
• caffeine: Substance in coffee, etc. that keeps you awake
• reduce: To try to decrease, e.g. your weight if overweight
• energy: Physical or mental strength
• chemical: Basic substance produced by mixing elements
• century: Period of 100 years
• adenosine: (biochemistry) a nucleoside that is a structural component of nucleic acids; it is present in all living cells in a combined form as a constituent of DNA and RNA and ADP and ATP and AMP
• alertness: State of being aware and able to respond quickly
• attach: To be associated or connected with
• pure: Not mixed with anything else
• hit: To have a negative impact on a person/place/thing
• system: Set of organized, planned ideas that work together
• catch: Amount of something that has been caught
• ban: To make something illegal or not allowed
• overdose: To take too many drugs, so that you might die
• daily: Happening every day
• person: Man, woman or child
• great: Very good; better than before
• dynasty: Family that controls a country for a long time
• infuse: To soak tea, etc. in hot water, oil etc.
• psychoactive: Affecting the mind or mood
• tablespoon: Large spoon that is used for measuring ingredients
• nervousness: Feeling of uneasiness or anxiety about something