Everyone needs friends. People with a large network of friends outlive those who don’t. Having friends may lower your risk of depression, increase your self-esteem, and provide you with the support you need to make it through life. But, some types of friendships could be doing more harm than good.

Here are 3 types of toxic friendships to swap out of your life to be healthier.

Purge: The Negative Talker
If you have a friend who manages to put a negative spin on everything, you might want to consider spending less time around them. Research has shown that negative thinking can increase stress, lead to depression, or even make you ill.

Find: The Positive Thinker
If you can, try to be friends with people who look on the bright side. Positive thinking can reduce levels of stress. In addition, positive thinking can increase your lifespan, improve your well-being, and give you better coping skills for when things do get rough. That’s the kind of influence you want in your life.

Purge: The Cancelation Queen
Everybody flakes out at least once, but having a friend who does it all the time can be a real drag. It’s incredibly inconsiderate and can be damaging to your self-esteem when a person you care about acts like you’re not important to them.

Find: The Reliable Pal
After being friends with people who constantly bail on you, it can seem kind of amazing to find somebody who actually shows up when you make plans. In fact, having a good friend nearby can improve your happiness by 25%.

Purge: The Dangerous Buddy
Wild nights are supposed to be a rare occurrence, but if every time you hang out with this friend you find yourself doing things you don’t really want to do (staying out until insanely late, drinking too much, spending too much money), it might be time to cut ties, before all those late nights take their toll on your liver, skin, and heart.

Find: The Like-Minded Pal
A great place to find a new friend is at the places where you’re doing the healthy things that you like – at the gym or yoga studio, for example. Making a friend who shares healthy perspectives makes you more likely to go to the gym or yoga studio. One study has shown that when your friends gain weight, you’re likely to gain weight too.

If your friendships are throwing your life off track, don’t be afraid to replace negative ones with positive ones. Your body, your spirit, and your wallet will thank