NIOSH Training for Nurses on Shift Work and Long Work Hours
Sleep Aids and Stimulants (Continued)
If you use caffeine heavily every day, it may no longer be effective for increasing alertness. You could instead consider it a “medication” to use strategically for its alerting effects.
Table 6.1. The caffeine content of popular drinks.
| Drink | Caffeine (milligrams) |
|---|---|
| Coffee, plain, 8 oz. | |
| – Brewed | 95-200 |
| – Instant | 27-173 |
| – Decaffeinated | 2-25 |
| Black tea, 8 oz. | 14-61 |
| Green tea, 8 oz. | 24-50 |
| Soft Drinks, 12 oz. | 0-55 |
(from http://www.mayoclinic.com/health/caffeine/AN01211external icon)
Page last reviewed: March 31, 2020
Content source: National Institute for Occupational Safety and Health