 Ever wonder why you get along better with some people over others? Compatibility plays a role, of course, and similar interests and hobbies do as well. But we're also often attracted to certain people who become our lifelong friends and romantic partners because they help us become better people. Just like rare gems, they can be hard to find. Tired of the liars, cheaters, and users you once thought you could rely on? Here are five types of people worth keeping in your life. 1. The ball of sunshine Ever heard of the saying that you are a mix of your five closest friends? When you surround yourself with sweet and caring people, you also catch their contagious energy. People who are positive and upbeat aren't just the cheerleaders you see at pep rallies. They can actually benefit your health. Research shows that positive thinking can increase your lifespan, strengthen your immune system, and reduce your risk of developing heart disease. It's still unknown about the direct causation of these benefits, but researchers theorize that having a positive outlook can help you cope with stressful situations better, which in turn reduces the physiological side effects that stress creates. 2. The life coach It's good to have role models in life, especially when you're young. A five-year study sponsored by Big Brothers Big Sisters Canada showed that children with mentors were more confident and displayed fewer behavioral problems such as bullying and giving into peer pressure than those who didn't. Young people who have mentors are also more likely to graduate high school and go on to college. Those of us who had absent or abusive parents will especially benefit from having someone by our side who can offer different perspectives and be the support system we lacked throughout most of our childhoods. 3. The adventure seeker What's life without a little adventure? When we get tied up in everyday responsibilities, chores, and work, it makes us forget about things to look forward to. Befriend someone who isn't afraid to step out of their comfort zone and travel the world. Together, you can embark on journeys that change your life forever. Not only does being adventurous reduce your levels of anxiety and depression, but it can also make you more intelligent. Psychologists from Indiana University discovered that our creativity and self-awareness increase. In addition, the new cultures, environments, and experiences we immerse ourselves in can cause our brains to think different. 4. The natural psychologist When you're having a bad day, it's good to have someone who understands you. Good listeners make the best friends because they have high emotional intelligence, giving them the gift of reading you well, empathizing, and providing authenticity. You can always count on these people to be open-minded and non-judgmental. Often philosophical and idealistic, these natural psychologists aren't afraid to ask you follow-up questions that help you tap into the power of self-reflection. Instead of explicitly telling you what to do, they would rather guide you to potential solutions. 5. The mad logician In order to move forward, we also must think forward. When you surround yourself with people who value logic and problem-solving, they can encourage you to use critical thinking instead of just basking in conflict. If you're especially the type of person to depend on others to make you feel better, being around logicians can help you become more self-sufficient, responsible, and practical. They're the ones who help you turn dreams into reality, reminding you that working through obstacles and challenges is much more rewarding than passively daydreaming. Sometimes, we're afraid to walk away from friends whose values no longer align with ours just because we've known them for a long time. But it doesn't always necessarily mean they become our lifelong friends. Don't be afraid to expand your horizons and meet new people. Do you know someone who changed your life for the better? Want to also learn about what a healthy relationship looks like? Check out our video here for all the details. Thanks for watching!