The afternoon dip is normal

That mid-afternoon slump most people feel around 2-4pm is a real, well-documented pattern tied to your body's natural rhythms. It's not a personal failing or proof that you "need" more coffee.

What tends to be behind it

A few everyday things stack up: a heavy or very carb-forward lunch, mild dehydration, a short or restless night, and simply having been "on" since the morning. None of these are dramatic on their own, but together they take the edge off your alertness.

What actually helps

A short walk, water before more caffeine, and a lunch with some protein and fiber tend to smooth the dip better than another espresso. A steady nutritional foundation helps too. It's easier to feel even through the day when the basics aren't running on empty. If the crash is severe or daily, that's worth a conversation with a professional.