Drug addiction isn't about bad habits, fear of withdrawal or a selfish search for pleasure. It's about the brain.
Discarded used hypodermic needles along the Merrimack River in Lowell, Massachusetts.
Charles Krupa/AP Photos
HIV, STIs and other dangerous infections are feeding off of the opioid epidemic, creating an even more complicated threat to public health.
Bad night’s sleep? Blame your genes.
A. and I. Kruk/shutterstock.com
Whether you're a night owl or a morning lark, circadian rhythms control just about every aspect of your health.
People without ID, like Steven Kemp, are sometimes turned away from the country’s already threadbare system of drug treatment centers.
Matt Rourke/AP Photo
On August 10, President Trump declared the opioid epidemic a national emergency. But we need to do a lot more to prevent this crisis from escalating even further.
Baby boomers who drink and take drugs risk a range of physical and mental problems that younger substance users don’t necessarily face.
More Australians over 50 are drinking and taking drugs than ever before. Here's why that can be a problem.
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A Victorian athlete's use of 'performance-enhancing' coca was met with interested approval rather than anger of the kind directed at Justin Gatlin.
Fentanyl: increasingly lethal.
Synthetic opiates are a growing problem.
Has D.A.R.E. moved beyond the “just say no” days of the ‘80’s and '90’s?
AP Photo/Nick Ut
Jeff Sessions was met with considerable skepticism when he announced his desire to revive D.A.R.E. But it turns out that the current program is nothing like the ineffective D.A.R.E. of the '80's and '90's.
Cannabis remains Britain’s favourite illegal drug.
Anabolic steroids and nitrous oxide are on the up and up.
The cells inside this bioreactor are the real pharmaceutical factories.
Rather than being designed by chemists, this class of pharmaceuticals is produced by living cells. Here's where they come from and how they work.
The Home Office issued its last drug strategy seven years ago. A lot has changed in that time, except the Home Office's ability to ignore the advice of experts.
Researchers are looking at technology for ways to manage mood.
Some technologies can be used to manipulate mood. Drug research offers insights into their possible impact.
Setting a low age floor for legal access to cannabis could improve drug-use prevention, education, health and safety for youth, research suggests.
(THE CANADIAN PRESS/Justin Tang)
Allowing young people to legally access marijuana will improve cannabis education and use-prevention, and hinder illegal activity.
This is what a marijuana plant, growing legally in Colorado, looks like.
The federal government outlaws marijuana, but many states are legalizing it. Coupled with the growing number of cannabis-related patents, the potential for court battles is dizzying.
Those keypads are teeming with microbes.
AP Photo/Charlie Riedel
What's on your cash? Studies show our money carries everything from pet DNA and old food to E.coli and traces of cocaine.
Nothing like Instagram.
Social media is not a drug. Yes it can have negative effects, but it has positive effects too.
Social Services Minister Christian Porter, speaking on Q&A.
Social Services Minister Christian Porter told Q&A that 'rates of drug use amongst unemployed are 2.5 times higher than amongst employed people'. Is that correct?
A pharmacist prepares to grind up a potion from unidentified pills the old-fashioned way.
AP Photo/Ruben Goldberg
Amazon currently sells pretty much everything, including the kitchen sink, but medications are very different from books and fidget spinners.
Generally, people under 40 have reported a decrease in recent illicit drug usage since 2001, while people 40 or older have reported an increase in recent years.
AAP Image/Paul Miller
The proportion of population who use legal and illegal drugs has remained stable or trended down. Fewer young people are using, but the proportion of older people using drugs and alcohol has grown.
Is it smart to take smart drugs?
Students taking 'smart drugs' to boost their academic performance are putting their health at risk.