Increase Motivation with Tyrosine
In the body, we usually start off with phenylalanine hydroxylase.
Some people with genetic mutations can have PKU (phenylketonuria) and have too much phenylalanine build up in the blood.
This can lead to mental retardation amongst other problems. R
BH4 has been shown to be helpful for PKU.
1. Helps with Attention and Cognition
Tyrosine is able to improve cognitive function. R
Tyrosine can also help with cognitive switching, improving cognitive performance. R
It can also promote deep thinking. R
2. Can Induce Wakefulness
150mg/kg of L-tyrosine attenuated decreases in cognitive performance that was associated with sleep deprivation. R
3. May Alleviate Stress
Stress can deplete NA (noradrenaline) concentrations in neural tissue (particularly in the hypothalamus and brainstem containing the locus coeruleus). R
L-tyrosine protected against acute stress during a week-long combat training, although the study didn't show any improvements in mood. R
4. May Help Memory when Stressed
L-tryosine may reverse losses of memory induced by cold stress in humans. R
Although, another study showed no increase in cognitive function from baseline when tested in a 4°C room. R
- L-tryosine can increase NA in the hippocampus, which can prevent stress-induced reduction of NA in rats when subjected to cold stress. R
5. Protects Neurons from Aging
My Experience with Tyrosine
When I take tyrosine, I notice increased motivation, verbal fluency, and a sense of calmness in the world. I feel like I can take on any challenge with ease. I will take this a few times a month with BH4.
I notice the best effects at 500mg on an empty stomach right when I wake up. I notice nothing if I have eaten that day.
Where To Get It
I use L-Tyrosine from bulk supplements.
Too much tyrosine can build up in the brain if low levels of tyrosine aminotransferase (TAT) are produced by the liver, possibly leading to mental retardation.
- N-Acetyl-L-Tyrosine is a more soluble form of L-Tyrosine that is more heat stable. It is deacetylated in the kidneys. R
- Some studies have shown chronic migraines can be from elevated plasma levels of tyrosine amongst other neurotransmitters. R
- L-tyrosine does not appear to enhance performance systemically. R