| Effect | None |
| Trial Design | Double blind |
| Trial Length | 24 hours |
| Number of Subjects | 10 |
| Sex | Both Genders |
| Age Range | 18-29 |
| Body Types | Untrained |
Caffine and 1,3-DMAA were both able to increase blood pressure in an additive fashion in 10 otherwise healthy young men.
No effects on heart rate were noted.
Effects on blood pressure appeared to be independent of adrenaline and noradrenaline.
