How do we know that tryptophan is essential to the manufacture of serotonin or that robbers are involved?
“Life can only be understood backwards; but it must be lived forwards.” ― Søren Kierkegaard
“Life can only be understood backwards; but it must be lived forwards.” ― Søren Kierkegaard
How do we know that tryptophan is essential to the manufacture of serotonin or that robbers are involved?
