| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what is the science behind caffeine | 0.05 | 1 | 8365 | 78 |
| the science behind caffeine | 0.4 | 0.6 | 4035 | 94 |
| science behind coffee | 1.57 | 0.2 | 6294 | 75 |
| what is caffeine chemically | 0.31 | 0.2 | 9294 | 38 |
| what is caffeine in chemistry | 1.23 | 0.1 | 8106 | 91 |
| caffeine and what it does | 1.11 | 0.4 | 5764 | 95 |
| the medicinal chemistry of caffeine | 1.97 | 0.9 | 778 | 78 |
| research facts about caffeine | 0.55 | 0.9 | 596 | 38 |
| the substance called caffeine | 1.85 | 0.1 | 4801 | 84 |
| why is caffeine a drug | 1.93 | 1 | 3136 | 35 |
| is caffeine a chemical | 0.87 | 0.4 | 547 | 49 |
| caffeine in the body | 1.18 | 0.3 | 1425 | 47 |
| interesting fact about caffeine | 0.9 | 0.3 | 1533 | 69 |
| physiological role of caffeine | 1.58 | 0.9 | 9154 | 99 |
| background information on caffeine | 0.87 | 0.4 | 7460 | 63 |
| why do people have caffeine | 0.91 | 1 | 2190 | 76 |
| general facts about caffeine | 0.86 | 0.4 | 3471 | 61 |
| why does caffeine work | 0.55 | 1 | 6247 | 87 |
| fun fact about caffeine | 1.7 | 0.1 | 9081 | 22 |
