Live
- Prakash Raj, Rashi Khanna, Sai Durgha Tej, and Gowthami at ABP Summit 2024
- SHO removed amid rising outrage over man's death in police custody in Lucknow
- Odisha CM conducts aerial survey in cyclone-affected areas
- ‘Commendable feat’: PM Modi on Tejasvi Surya completing Ironman 70.3 event
- 1984 riots case: Delhi HC admits CBI's appeal challenging acquittal of ex-Cong MP Sajjan Kumar
- NC MLA detained at Srinagar airport after ammo found in luggage
- Harris to give closing remarks in Washington, Trump in New York
- Priyanka slams UP govt over death of man in Lucknow police custody
- Mumbai stampede reminder of decay in Railways: Sandeep Dikshit
- Shami very likely to make Ranji Trophy return, could make India comeback from Brisbane Test
Caffeine fails to improve alertness after three nights of restrictive sleep
A new research has found out that caffeine fails to improve alertness or performance after three nights of restrictive sleep to five hours per night.
Washington D.C: A new research has found out that caffeine fails to improve alertness or performance after three nights of restrictive sleep to five hours per night.
The study carried out by American Academy of Sleep Medicine show that relative to placebo, caffeine significantly improved Psychomotor Vigilance Task (PVT) performance during the first two days, but not the last three days of sleep restriction.
Lead author Tracy Jill Doty of Walter Reed Army Institute of Research explained, "These results are important, because caffeine is a stimulant widely used to counteract performance decline following periods of restricted sleep. The data from this study suggests that the same effective daily dose of caffeine is not sufficient to prevent performance decline over multiple days of restricted sleep."
This study has been published in an online supplement of the journal 'Sleep'.
