Cannabis affects sleep quality, with problems worse for those who start early, scientists claim
People who had been using since their earlier teens were twice as likely to have sleeping problems
People who used cannabis in their early teens are twice as likely to have severe sleeping problems in later life, according to a new study.
While the results suggested that marijuana use can negatively effect sleep quality in any user, it was most frequent in people who had used the drug since they were 15-years-old or younger.
The findings are likely to be most concerning for people who use marijuana to relax or as a sleeping aid, said lead author Jilesh Chheda, research assistant of the Division of Mood and Anxiety Disorders, Department of Psychiatry, at the University of Pennsylvania.
“This latest study found that current and past marijuana users are more likely to experience sleep problems,” he said.
“The most surprising finding was that there was a strong relationship with age of first use, no matter how often people were currently using marijuana.
“People who started using early were more likely to have sleep problems as an adult,” he added.
Read more: Archives show Big Tobacco had high hopes for cannabis
'Weed coffee' to go on sale in Washington – and it's definitely Legal
Cannabis given out to voters in San Jose on California primary day
The study involved adults aged between 20 and 59-years-old, who responded to the National Health and Nutrition Examination Survey – a series of studies designed to assess the health and nutritional status of adults and children in the US.
1,811 of those participants reported that they had used any drugs. To assess the results, scientists defined a ‘cannabis user’ as a person with any history of using the drug, and sleep-related problems were considered severe if they occurred at least 15 days per month. When a person first used the drug, and the number of times they had used it in the past month were also analysed.
Read more: High time to end this immoral drugs war
FBI 'weed' problem in cyber-war
'Isle of Man should consider decriminalising cannabis'
The team found that marijuana users were more likely to have difficulty sleeping, maintaining sleep, experiencing non-restorative sleep, and feeling sleepy in the daytime. People who had taken the drug before they were 15 were twice as likely to suffer these complications.
The study published in the journal ‘Sleep’ and presented at SLEEP 2014, comes after Uruguay and the US states of Washington and Colorado legalised recreational marijuana use, with the first shops opening in the latter earlier this year.
“As more people have access, it will be important to understand the implications of marijuana use on public health, as its impact on sleep in the ‘real world’ is not well known,” said senior study author, Michael Grandner, PhD, instructor in Psychiatry and member of the Center for Sleep and Circadian Neurobiology.
- 1 All Blacks Aaron Cruden misses New Zealand flight after drinking session, has brilliant excuse
- 2 Kim Kardashian 'nude photos' leaked on 4chan weeks after Jennifer Lawrence scandal
- 3 'F*ck it, I quit': TV reporter Charlo Greene quits live on air in spectacular fashion
- 4 Alicia Keys leaks nude photo 'to create a kinder and more peaceful world'
- 5 Clothes store Joy angers mental health campaigners with Twitter exchange on bipolar disorders
Scotland could still declare independence – even without referendum, says Alex Salmond
Scottish referendum results: Cross-party consensus collapses amid Tory-Labour spat on the 'English question'
Hilary Mantel 'should be investigated by police' over Margaret Thatcher assassination story, says Lord Bell
Scottish independence: David Cameron is becoming the 'George Bush of Britain'
Plebgate MP Andrew Mitchell called officer a 'little s**t', claim court documents 'exposing ex-Chief Whip's 'record of abusing police'
Archbishop of Canterbury admits doubts about existence of God
£300 - £350 Per Day: Clearwater People Solutions Ltd: Pharmaceutical Computer ...
£70 - £90 per day: Randstad Education Birmingham: Higher Level Teaching Assist...
£50 - £80 per day: Randstad Education Birmingham: Randstad Education is the UK...
£400 - £450 Per Day: Clearwater People Solutions Ltd: Our client is currently ...