Studies related to Noradrenaline and L-Tyrosine

Tyrosine Reverses A Cold-induced Working Memory Deficit In Humans

Effect None
Trial Design Double blind
Trial Length 24 hours
Number of Subjects 8
Sex Male
Age Range 18-29
Body Types Average
Notes for this study:
Tyrosine at 150mg/kg was able to preserve working memory (via matching accuracy tests) during acute cold stress without inherently improving memory during a nonstressful period; the degree or preservation was absolute, and the temperature of control and cold stress was 22°C and 4°C, respectively.

This study failed to find an effect on plasma noradrenaline levels (despite tyrosine being increased), which increased during cold stress.

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