
Caffeine
Alertness Aid
Caffeine is often used to describe how certain drinks help increase alertness and concentration.

If I don't get my caffeine in the morning, I can't concentrate on work.
Energy Boost
Mentioning caffeine usually implies looking for an energy boost, especially when someone is tired.

During long meetings, I rely on caffeine to keep me energized.
Morning Ritual
Caffeine is commonly associated with morning routines and is often consumed in beverages like coffee and tea.

My day doesn't start until I've had my caffeine.
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