A new study was published online in the journal Neuropsychopharmacology.
Their study involved 379 brave volunteers who went coffee “cold turkey” for 16 hours before being given a caffeine capsule or a placebo capsule containing corn flour.
They were then tested for a range of responses, but there was little variation between the real- caffeine group and the placebo group in levels of alertness.
WebMD – Boost From Coffee Is Just An Illusion
