when something repeats in the same order
cycle
an amount of time
period
things you choose
choices
to stop something or someone before they finish
interrupt
the regular way something happens
pattern
busy, doing a lot of activities
active
someone who goes to bed early and wakes up early
day person
someone who goes to bed late and stays up late
night person
the number you get when you add all the other numbers
total
happening every day
daily
to discover or learn
find out
the feeling of being very tired and sometimes confused because they have flown quickly across parts of the world where the time is very different
jet lag
good for the body
healthy
to think or believe something will happen
expect
not sleeping
awake
the usual way something happens
natural
the part of the body we use for thinking and feeling
brain