Assertion: tryptophan | /r/CapableOf | induce sleepiness
Facets:
Source sentences:
text: Those who take tryptophan at bedtime are more likely to wake up with increased alertness, to have clearer thinking, and to perform better on attention-requiring tasks.25,28 Unlike sleeping pill drugs, tryptophan induces sleepiness but does not impair performance or produce dependence, nor does it make it harder to be roused from sleep when necessary.27,29