How do drugs affect the body? (illegal/legal)

Drugs can affect the body in many different ways.

There is good and bad drugs. As medicine and medical subscribed.

Some can help your body; good medicine. Some can mess it up and might take u to dead.

For example Cannabis(marijuana) can be helpful for the heart problems or cancer. But it is also illegal to prescribed it to people with out a doctor giving permittion. To people that don't need it still smoke it because they like the high reaction that cannabis gives to them.

Good