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DRINKING COFFEE BEFORE bedtime disrupts the body’s internal clock, making it harder to get to sleep on time and more challenging to wake up in the morning.
The findings in the journal Science Translational Medicine not only explain why evening caffeine-drinkers may stay up — and wake up — late.
Coffee is not always disruptive though, researchers say travellers could also time their caffeine intake to limit the effects of jet lag,
The study involved five volunteers who were randomly assigned to consume as much caffeine as contained in a double espresso three hours before bed, or who were exposed to bright lights, or were given a placebo.
Over the course of 49 days, the volunteers were studied under various conditions, and their saliva was regularly tested for levels of the hormone melatonin, which naturally regulates sleep and waking cycles.
They found that those who took caffeine in low-light conditions experienced about a “40-minute phase delay of the circadian melatonin rhythm,” said the study.
Those who were exposed to bright overhead lights three hours before bed saw their circadian clocks bumped back by 85 minutes.
Those who took both the caffeine and sat under bright lights were disrupted by 105 minutes.
“This is the first study to show that caffeine, the mostly widely used psychoactive drug in the world, has an influence on the human circadian clock,” said professor Kenneth Wright of the University of Colorado, Boulder.
“It also provides new and exciting insights into the effects of caffeine on human physiology.”
While the findings reinforce the common advice to avoid caffeine before bed, the study said it also raises the “intriguing” possibility that proper use of caffeine could help reset the body’s clock in order to avoid jet lag.
However, more research is needed to determine how travelers crossing time zones should best use caffeine to stay alert.
“It will be important to monitor for caffeine-induced sleep disruption under such conditions, which could worsen jet lag,” said the study.
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But if I didn’t put away my phone I wouldn’t know what the pope was telling me to do !!
@Liam Armstrong: the message would reach your wallet tho
@Sean Treacy: double negative
If it wasn’t for phones(Internet) and TV maybe we would never have found out the pure devistation that the Catholic Church has caused around the world. Might give up going to mass this lent instead.
@Peter O Donnell: Ah here we go!
@Pat Coyne: ya poor you
@Peter O Donnell: do just that, it’ll help you more clearly concentrate on what really matters.
@Peter O Donnell: And don’t forget the Popes broadcast in April : ‘ Ubi eat Orbi’.!!
@Peter O Donnell: you think the world is bad with the catholic church in it? I can assure you it would be far worse without it.
@Peter O Donnell: I’m not sure a phone or even a tv was necessary to read the news. Giving up going to mass has nothing to do with speaking directly to God, they are not mutually exclusive.
@Seamus Mac: No. No it wouldnt.
And he should release all the secrets too.
@Paul F. White: I have the 3rd one if you want it. It’s a bit wordy though. Judgement day, preceded by fires, disease, obscure sporting victories etc.
The irony of his twitter comment is just too much…
He says all that while he has his servants serve him dinner on fancy plates.. and he fights tooth and nail to cover up the churches wrong doings.All to protect the massive wealth the Catholic Church has gained by the exploitation of some of the most vulnerable and Gullible in society.
Hypocrisy at its finest right there.
@Andy mc Laughlin:
Well said
@Andy mc Laughlin: Don’t let bitterness destroy your heart, happy are the merciful for they shall have mercy shown them.
@Liam Mernagh: you talk some shite mate. I suggest you have a chat with some of the victims of abuse suffered at the hands of the church.
@Liam Mernagh: I’m not bitter at all I’m happy out knowing my place in society and living everyday to its fullest potential and helping others along the way. And I can do all of this without the crutch of religion to dictate to me how I should live. I do it because I want to do it not to please a god.
@paul mccoy: I’m pretty sure he’s being sarcastic
@Sirius: are all catholics paedophiles now? What a joke of a comment.
He’s right, been ages since I read a good fiction novel
@Tony Gordon: Rebus.
@Tony Gordon: you’re going to find that out at some future date .
Is it just me or does information seem to be the natural enemy of faith?
@The Risen:
Its Education. Religion feeds off ignorance (Just look at countries such as Indonesia etc)
That said, there seems to be a very basic human need to believe that there is life after death which is the cornerstone of all religions.
@Moorooka Mick: That’s right education. Thank goodness the RC never did anything in this country or other countries around the world regards education.
@The Risen: anybody claiming to be a Sinn Feiner needs all the help they can get. Your party is not great at assimilation.
@Padraig Corcoran: a wee bit of irony, that will be lost on the commenters here.
@The Risen: its just you, pray that you will rise.
@Padraig Corcoran: without the RC,the Irish people wouldn’t have had an education,it was the church that cared for the poor people of Ireland,
@Jimmy Carroll: cared for. Are you serious? Get education!
@Jimmy Carroll: Think you missed the point there
@The Risen: where did you go to school?
@Moorooka Mick: describing all religious people as ignorant is a bit silly.
He’s just being Frank
How would we keep up to date with the corona virus situation on the Journal? I need the shite scared out of me 10 times a day! Is that not penance enough for Lent
That’s one sure way to increase the population
@Kieran Staunton: Nice one!
Let’s all talk to the invisible sky fairy that, apparently, lives in our heads… we would section people for less. Time to end the god delusion.
@Ian Breathnach: Agreed, but we are very lucky to live in a locale where we can express this.
Post anything about Aallah or Muhammad being a figment of someone’s imagination and you will be in trouble.
It’s disgusting . We will never grow up.
@Ian Breathnach: is someone or thing stopping you?
@Con Cunningham: Not true. I have said the very same thing about Allah and Muhammad, they are mere figments of peoples imagination, they’re deluded for following such nonsense.
@Ian Breathnach: ‘Sectioning’ people for their spiritual beliefs has thankfully disappeared with the Aztecs.
@Ian Breathnach: have you ever heard of the atheist delusion?
@Ian Breathnach: must be great for you to have all the answers..
@Ian Breathnach: Does faith anger you pet?
@Ian Breathnach: If you don’t know the difference between Muhammad and Allah you really shouldn’t be making comments regarding the Pope and God.
@Ian Breathnach: have a read of eric metaxas “miracles”. Thought provoking stuff.
Well if Francis says to do it…
Clever move Popey. The redress programme is on Monday night.
You know what Francie, maybe stop protecting priests who abuse children and maybe we would listen you absolute hypocrite
@Chris:
Well said
@Chris: where’s your evidence for your statement.
@Liam Mernagh: it’s locked up in the Vatican vaults where the Church won’t release them to the investigating authorities cos they are still covering up mass child abuse.
@paul mccoy: ah the famous vatican vaults, i believe shergar was also spotted there.
Right after I post this comment chief
I’ll put away my mobile if he puts away his Pope mobile.
If anyone knows about verbal violence it’ll be the head of the RC church I suppose
Feck off
Maybe he should be suggesting that people stay away from mass, given the current spread of Corona virus.
I’m not getting much of a response from “The lord”.
God created tv and phones
Is that pope no 1 or pope no 2
The bible.. 1 of the most violent books ever published
@Caroline Quirke: read it in full context Jesus Christ is the prince of peace, read the new testament
@Jimmy Carroll: and Santa Claus is the king of Christmas and the tooth fairy is the patron saint of dentists
@old man trucker: does mocking other people’s beliefs make you feel clever and witty?
@FecklessBear: wasn’t mocking, those are my beliefs
@Jimmy Carroll: I read it all the way through. By the end, my life was changed. Jesus breaks the chains that bind us!
I don’t know, maybe he has a point? Nothing better than cutting out the chatter and settling down to reading a fairy story.
I say stop denying the actions of your clergy, weed out the paedophiles and let them be prosecuted in court and pay sufficient amounts of compensation to the victims of your organisation.
@Sirius: when did he deny the actions of the clergy?
Beats me why people who are not Catholic feel the need to respond to a message from the Pope that was not meant for them. It like a virus , they can’t stop themselves.
@Aine O Connor: PDS?
Such nonsense no harm in TV or phones and the bible should be opened all year round not just for lent what makes me laugh is religion preaches what they want not the truth I’d rather believe in gods word we can all believe in wars we were not here for because there facts well jesus Been here is a fact and our calendar goes from when christ was on this earth yet the earth has been here millions of years praise God
@Dervilla Regan: I love statements like that…full stop!
@Dervilla Regan: Sweet and well said. The power is strong in this one.
@Dervilla Regan: as bearla mas e do thoil eh
Completely out of touch ..no surprise there then.
@Chris OB: astounding ignorance. You disgrace the vast majority of clergy who have given their lives to make the world a better place. Do you describe the boy scouts if america as a p ring?
@Seamus Mac: jesus gave his life and suffered an awful death for each and ever one of us your opinion my opinion or the popes opinion does not matter only gods the bible is there for us all
Says your man posting to Twitter ….
Pope Frankie can go f**k himself.
@Pete Gilmartin: Troll
waiting here boys..
me.beep.ie/HNp
only 18+
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