Reason 4,598 people should avoid long-term relationships: they might give you a heart attack.

Relationship insecurity (n): the constant fear that you’re not good enough and your partner will cheat, and extreme fear of rejection.

Assuming you aren’t some sort of AI robot (and if you are, please consider me a friend when you take over the planet), you probably have felt that twinge of jealousy in your relationships, but if you are the type to constantly fret about cheating and rejection, guess what? You’re more likely to have cardiovascular problems later in life, according to the National Cormorbidity Survey Replication. When they had a survey of participants rate their relationship personality, as either is secure, avoidant, or anxious (insecure), they found that those in the third category were more likely to suffer from a wide array of health issues, especially cardiovascular problems.

The lesson here? Well, take our advice and stick to casual dating while you can, but if you have to get all long-term on us, be secure, be confident, be aware that life goes on, and don’t be anxious, cause it could really kill you!