Memes and funny clips on Instagram: "Sibling love is one of the longest-lasting relationships most people will ever have. Psychology studies show that siblings play a huge role in shaping emotional intelligence, conflict resolution, and empathy from a young age. Fighting is common, but so is deep bonding — those arguments actually help the brain learn negotiation and boundaries. Fun fact: siblings often develop a shared sense of humor and inside references that last for life. Researchers also fo

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