Vocabulary

• in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
• at the same time: Simultaneously; at the identical moment.
• after dark: After the sun has set and night has begun.
• same time: Occurring simultaneously or at the same point in time.
• on earth: Used to emphasize a question expressing surprise or anger.
• work in: To make an opening for something in your schedule
• for instance: As an example.
• at night: During the night; in the nighttime.
• out of whack: Not in proper working order; not functioning correctly.
• for example: As an illustration or instance.
• out of sync: Not occurring at the same time or rate; not synchronized.
• behind the wheel: In control of a vehicle; driving.
• wake up: To stop sleeping
• soak up: To absorb; to become filled with (something)
• out of the question: Impossible; not worth discussing.
• know about: To have information or understanding of a subject or situation.
• phenomenon: Unusual event, fact that can be studied
• depression: Medical condition of a lack of vitality
• rhythm: Pattern of events, motions, or changes
• trigger: Lever on a gun that you pull to fire
• physical: Health check at the doctors' or hospital
• recommend: To advise or suggest that someone do something
• obesity: State of being so fat it can harm your health
• matter: To be of great importance; to count
• improve: To make, or become, something better
• plenty: When there is not too little of something; a lot
• instance: An example of something; case
• severe: Very bad; harsh
• consider: To think carefully about something
• strike: To hit something
• amount: Quantity of something
• academic: Concerning education, schools, universities, etc.
• hormone: Chemical produced by the body to control functions
• increase: To make or become larger in size or amount
• assumption: Something you believe to be so, but aren't sure of
• shift: To change in position or direction
• estimate: Guess or calculation of cost, size or value
• toll: Sound that a big bell makes, when it is rung
• avoid: To prevent from happening
• brain: To strike someone forcefully on the head
• advice: Suggestion about what would help someone
• circadian: Concerning biological processes occurring at -hour intervals
• society: A group who meet to share values or interests
• practically: Nearly, almost, or in effect
• generally: Usually; as a rule; by, to or for most people
• snooze: A short light sleep; nap
• primary: Most important, most basic or essential
• population: Number of people who live in a country, area etc.
• melatonin: Hormone secreted by the pineal gland
• risk: To do something potentially dangerous or foolish
• wanna: Shortened form of 'want to'. Used only in speaking
• soak: To make something completely wet
• produce: Fresh foods such as fruits and vegetables
• fall: Season after summer and before winter; Autumn
• social: Involving activity with people, e.g. in free time
• harmony: Pleasing, attractive combination of parts, things
• digital: Using electronic signals or computers
• organism: Living thing, often one that is small
• sync: Short for 'synchronization'
• hit: To have a negative impact on a person/place/thing
• order: Religious or social group, as of nuns
• control: A device designed to operate a machine
• nocturnal: Done at night; active at night
• hypothalamus: Basal part of the diencephalon governing autonomic nervous system
• whack: To hit someone or something with great force
• tired: Without energy so you want to rest or fall asleep