The 5 love languages are a framework developed by Dr. Gary Chapman to describe the different ways people express and experience love. According to his theory, each individual has a primary love language that they prefer to receive love in. Understanding these love languages can greatly improve communication and emotional connection in relationships.

The 5 love languages are:

1. Words of Affirmation: This love language involves using words to express love, appreciation, and encouragement. Examples include saying "I love you," giving compliments, or leaving sweet notes for your partner.
2. Quality Time: Quality time is all about giving your undivided attention to your partner. It can involve activities like going on a date, having a meaningful conversation, or simply spending time together without distractions.
3. Receiving Gifts: For some individuals, receiving tangible gifts is a powerful way to feel loved and appreciated. It's not about the monetary value, but rather the thought and effort put into choosing and giving a gift.
4. Acts of Service: This love language emphasizes doing things for your partner to show your love. It can include tasks like cooking a meal, doing household chores, or running errands to lighten their load.
5. Physical Touch: Physical touch is about using physical contact to express love and affection. It can range from holding hands and hugging to more intimate gestures like kissing and cuddling.

It's important to note that everyone has a unique combination of love languages, and what makes one person feel loved may not have the same effect on another. Discovering your partner's love language and expressing love in that way can significantly strengthen your relationship.

For more information on the 5 love languages, you can refer to Dr. Gary Chapman's book, The 5 Love Languages: The Secret to Love That Lasts.