Sleepy (adjective)
/ˈsliːpi/

tired and wanting to sleep

Harmful (adjective)
/ˈhɑːmfl/

causing harm

Survive (verb)
/səˈvaɪv/

to continue to live or exist, especially after coming close to dying or being destroyed or after being in a difficult or threatening situation

Fact (noun)
/fækt/

something that is known to have happened or to exist, especially something for which proof exists, or about which there is information

Random (adjective)
/ˈrændəm/

happening, done, or chosen by chance rather than according to a plan

Nap (noun)
/næp/

a short sleep, especially during the day

Alertness (noun)
/ə'lə:tnis/

quick to see, understand, and act in a particular situation

Prevent (verb)
/pri'vent/

to stop something from happening or someone from doing something

Burnout (noun)
/bɜːnaʊt/

the state of having no energy or enthusiasm because of working too hard, or someone who shows the effects of this state

Relieve (noun)
/ri'li:v/

to make an unpleasant feeling, such as pain or worry, less strong

Productive (adjective)
/prəˈdʌktɪv/

resulting in or providing a large amount or supply of something

Healthy (adjective)
/ˈhelθi/

showing that you are strong and well

Habit (noun)
/ˈhæbɪt/

something that you do often and regularly, sometimes without knowing that you are doing it

Consistent (adjective)
/kənˈsɪstənt/

always behaving or happening in a similar, especially positive, way

Maintain (verb)
/meɪnˈteɪn/

to continue to have; to keep in existence, or not allow to become less

Bedtime (noun)
/ˈbedtaɪm/

the time at which you usually get into your bed in order to sleep

Regulate (verb)
/ˈreɡ.jə.leɪt/

to control something, especially by making it work in a particular way

Appetite (noun)
/ˈæp.ə.taɪt/

the feeling that you want to eat food

Adequate (adjective)
/ˈæd.ə.kwət/

enough or satisfactory for a particular purpose

Fatigue (noun)
/fəˈtiːɡ/

extreme tiredness