Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Prevalence of experienced caffeine-related harms.
| Reported harm | Percent | N |
|---|---|---|
| Fatigue | 25.4 | 312 |
| Irritability | 30.6 | 376 |
| Reduced functioning | 29.9 | 367 |
| Headache | 36.8 | 452 |
| Insomnia | 39.3 | 482 |
| Feel dependent | 38.3 | 470 |
| Upset stomach | 32.0 | 393 |
| Dehydration | 28.7 | 352 |
| Muscle tremors | 14.9 | 183 |
| Increased heart rate | 19.8 | 243 |
| Skin problems | 14.3 | 175 |
| Teeth stains | 28.6 | 351 |
| Desire for sugar | 42.9 | 527 |
| Spending too much | 19.7 | 242 |
