Subscribe now

Health

Everything you need to know about the way cannabis affects your brain

From the relationship between cannabis and creativity to the effects of cannabis on teenage brains, here are 9 important questions about marijuana answered

By Corryn Wetzel

18 December 2023

Our Science of cannabis series has been investigating some of the biggest questions about the drug

Iryna Yablonska/Shutterstock

With cannabis use rising around the world, questions about how the drug interacts with our brain are becoming ever more important. Can marijuana improve our sleep? Boost creative thinking? Make food taste better? 

In our Science of cannabis series, we interrogate the biggest and boldest claims about the drug. We topple common myths about cannabis (sorry, lighting up before bed probably won’t help you sleep better) and uncover areas of promise, like quelling some forms of pain and nausea. 

The series also explores how the brain interacts with cannabis’s psychoactive compound THC, with sometimes life-long consequences. Marijuana can disrupt how young brains develop – but in older adults, it can boost the neural connections associated with memory and learning. 

Here are some highlights from the series:

Does cannabis boost creativity?

Can cannabis improve your quality of sleep?

Does being high make you forgetful?

Why does time seem to slow down when you’re high?

Can cannabis relieve pain?

Is cannabis linked to psychotic disorders, including schizophrenia?

Does smoking versus eating edibles make a difference?

How does cannabis influence a growing brain?

Why do you get hungry when you’re high?

New Scientist Logo

Follow this series

Sign up to receive emails about the science of cannabis

Topics:

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox! We'll also keep you up to date with New Scientist events and special offers.

Sign up