Under the weather
Feeling sick
Down to earth
Practical and realistic
To hit the road
To start a journey
To hit the books
To study hard
Treasure every moment
Appreciate time and experiences
An apple a day keeps the doctor away
Eating healthy helps you to avoid illness
A fish out of water
Feeling out of place, like you don't belong
Travel light
To bring only a few things with you
Hit the ground running
To start something immediately with energy
Once in a blue moon
Something that happens very rarely
Very healthy
Lost in translation
Meaning is misunderstood or misinterpreted
The middle of nowhere
A very remote place
A picture is worth a thousand words
Pictures can show complex ideas better than words
Brain like a sieve
Forgets things easily
Back on your feet
Recovered from an illness
Tip of the iceberg
A small part of a much bigger problem
Catch the travel bug
To start loving to travel
Think outside of the box
Be creative and original
A trip down memory lane
Reflecting on the past
Wake-up call
A warning or realisation that makes you take action
Can't see the forest for the trees
To miss the 'big picture' because you're too focused on the small details
At a crossroads
At a point where a decision is needed
Burning the midnight oil
Working late into the night
Water under the bridge
Past events that are no longer important