A drink helps you unwind at the end of the day.

It can also help you form friendships and relationships by relaxing you and reducing anxiety.

But too much alcohol also has a negative impact on your relationships.

For instance, it can increase aggression, and make sex less enjoyable.

Alcohol is a curious thing. Some reports say a small amount could make you live longer, while other studies say there is no safe amount at all.

One thing's for sure, though — alcohol certainly affects our behaviour. So much so, some people report feeling completely different when they've had a drink.

It's a staple of our social lives, often being referred to as a "social lubricant," but alcohol can also be damaging to our relationships.

Here are 11 ways alcohol can affect your friendships, romantic connections, and sex life — for better or for worse.