I, like many of you, have often wondered about the notion of drinking a cup of coffee after the evening meal. People often say things like, “I can’t drink coffee after 4PM or I won’t be able to sleep,” and this seems to make sense. Others, like myself, can enjoy a coffee after dinner seemingly without any consequences, as far as sleep is concerned.
To help shed some light on this issue, researchers publishing in the Journal of Clinical Sleep Medicine recently reported the results of study in which individuals consumed 400mg of caffeine 0, 3, or 6 hours prior to their normal bedtime. These folks were compared to a similar group of people who received a placebo. Sleep was measured by self-reporting as well as through the use of a portable sleep monitor. Continue reading