8 ways that drinking coffee is connected to better health and a longer life

Caffeine is the most commonly used psychoactive drug in the world - for good reason. It wakes us up, helps us stay on task, and provides an oft-needed energy boost.

And most of us in the Americas and Europe get our caffeine fix from coffee.

But people often worry that they should limit their coffee consumption or cut it out completely. That's probably because coffee can feel like a crutch.

It is possible to overdo it on caffeine -many heavy coffee drinkers surpass the recommended limit of 400 mg of caffeine per day, and that can cause insomnia, restlessness, or a fast heartbeat, especially if consumed too fast.

But most research on coffee consumption indicates that coffee is not bad for us, and is associated with some pretty impressive health benefits.

In most cases we can't say that coffee actually causes health benefits - the causal mechanism is unclear. But research does suggest that coffee drinkers are less likely to suffer from certain illnesses.

There are plenty of foods and drinks that most of us should consume less. But here's why coffee shouldn't be on that list.