Navigation Links
Marijuana 'gateway' theory strengthened by study of twins

A new study of 311 sets of same-sex twins in which only one twin had smoked marijuana before age 17 has bolstered the fiercely debated "gateway theory" that pot can lead to harder drugs. The study included 136 sets of identical twins who shared the same genetic makeup and all the participants were 30 years of age, on an average, when they were asked about their teenage drug use. The researchers found that those who were early marijuana smokers// were five times more likely than their twins to move on to harder drugs. They were about twice as likely to use opiates, which include heroin, and five times more likely to use hallucinogens, which include LSD. They found that about 46 percent of the early marijuana users reported that they later abused or became dependent on marijuana, and 43 percent had become dependent on alcohol. The study also reported that among 48 per cent of the early marijuana users, the most commonly used harder drugs were cocaine and other stimulants as compared to 26 percent of the non-early marijuana users. Hallucinogens were the second most common, used by 35 percent of the early marijuana twins versus 18 percent of the others.

The study, whose lead researcher was Michael Lynskey, was reported in the Journal of the American Medical Association. Lynskey and other colleagues agreed that the study had several limitations like the fact that even identical twins do not share the same environment during adolescence and the study had relied on participants' reporting of their own experiences. Lynskey also added that though it is implied often that using marijuana changes one's brain or makes one crave for other drugs, the study did not show how marijuana could lead to harder drugs. He also said that there are a number of other potential mechanisms, including access to drugs, willingness to break the law and likelihood of engaging in risk-taking behavior that might lure one to harder drugs.


'"/>




Page: 1

Related medicine news :

1. Marijuana Use Could Result In Psychosis
2. Wife May Determine Husband’s Marijuana Use
3. E-Mail Affects Brain More Than Marijuana
4. Marijuana-Derived Drug Promises Hope In Treating Bladder Infection
5. Adolescent Marijuana Smokers Face Risk Of Developing Schizophrenia
6. Rhode Island legalizes use and possession of Marijuana
7. Smoking Marijuana Increases The Risk Of Bladder Cancer
8. Marijuana Compound Offers Hope In Diabetic Retinopathy Prevention
9. Marijuana Causes The Brain To Lose Its Ability
10. Cancer Patient to Appeal to SC, Demanding Right to Use Marijuana
11. Fertility Treatment Can Be Affected By The Use Of Marijuana
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/12/2016)... ... February 12, 2016 , ... ... today announced the integration of Clarity Intelligence Platform (CIP) into Cielo®, a discovery, ... real-time business intelligence (BI) to their small and medium business (SMB) clients. ...
(Date:2/12/2016)... ... February 12, 2016 , ... Vail knee specialist Robert LaPrade, MD, PhD ... 2016 . The list consists of physicians establishing, leading and partnering with ambulatory surgery ... , An Ambulatory Surgery Center, also known as an ASC, is a modern health ...
(Date:2/12/2016)... ... February 12, 2016 , ... For Coast Dental dentist Everet Lake, ... and dental assistant Terrell Moore shortly before 7 a.m. to volunteer at Friday’s Dentistry ... donating their time and skills to help hundreds of uninsured and underinsured people receive ...
(Date:2/12/2016)... ... February 12, 2016 , ... Homeowners now have ... possibilities. CertainTeed, North America’s leading brand of building products, has improved upon its ... in the mobile version of the ColorView® Exterior Style and Color Selector. Created ...
(Date:2/12/2016)... ... February 12, 2016 , ... The aging population and ... long term care. With that, says Patrick Loughney, president of Longtree & ... in long term care environments. His company, which offers prep courses and workshops ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... Calif. , Feb. 11, 2016  Walgreens has ... across 39 states and Washington, D.C. ... a move that was commended by shareholder advocacy organization As ... at As You Sow. "Many people hold on to unneeded ... which can have tragic consequences." --> Conrad ...
(Date:2/11/2016)... 2016 Potrero Medical, Inc., the developer of the ... appointment of George M. Rapier, III , MD, to ... , WellMed is one of the nation,s largest physician ... members in Texas and ... his own internal medicine practice, he has been instrumental to ...
(Date:2/11/2016)... N.C. , Feb. 11, 2016 ... leading provider of custom manufacturing and development services ... expanded sterile fill-finish capabilities and capacity in its ... growth in demand has driven several recent investments. ... 2001 it had one filling line with small-scale ...
Breaking Medicine Technology: