Be careful, these 4 drugs are much more dangerous when it's hot out

florustack via Visualhunt.com / CC

Summer is an especially popular time for the sorts of events where (some) people like to get drunk or high - music festivals, concerts, and any number of other big parties.

But summer can be an especially dangerous time for drug users.

Most drugs mess in one way or another with your body and health - not to mention decision-making abilities - and some pose particular risks in hot weather.

Here are four drugs that are especially dangerous with a hot sun overhead.