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Norepinephrine, for instance, plays an essential role in attention, stress reactions, and other cognitive functions.66 With that in mind, some research suggests that higher tyrosine intake translates to better resilience in stressful or cognitively demanding situations, better short-term memory, and improved cognitive flexibility.11 However, theres a good chance that tyrosines effects will be less palpable if you have normal levels of dopamine and norepinephrine when youre taking it.12 Caffeine You might find you dont function the same without your morning cup of coffee

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It helps the body transport fatty acids to the mitochondria where they can be converted into energy

If youre looking to supplement with vitamin D, you want to select a Vitamin D3 supplement that also has K2 to help it do its job best with less side effects

Topical use makes sense when the target is reachable from the surface