Drinking coffee in the morning might make you feel different from drinking it in the afternoon or evening. It’s important to be aware of these possible variations and how they might impact your sleep, mood, attention, fitness, and quality of life.

1. Coffee Timing for Alertness and Focus

Many people drink coffee in the morning , before, during, or after their first meal. The caffeine in coffee can help you feel alert, focused, and attentive for a few hours.

As the day goes on, the effects of morning coffee start to wear off, and another cup of coffee later in the day can help you focus, but might interfere with your sleep.

Caffeine in Coffee

A 12-ounce (oz) cup of coffee has between 113 and 247 milligrams (mg) of caffeine. Decaffeinated coffee is lower in caffeine, while some

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