Think of your brain as a work in progress— it’s constantly building new connections crucial to your growth and development. When you get high as a teenager, your brain’s development is interrupted. The long-term impacts of marijuana on the growing brain are still being studied, but research suggests that weed can have lasting effects on memory, learning and intelligence.
In the short term, marijuana affects your decision making and judgement. When you’re high, you are more likely to do something dangerous like get in the car with someone who is driving under the influence or have unsafe sex. It can also affect your ability to ask for or give consent.