# Harvard Researchers: 3 Types of Friendships Needed for Full Belonging

> Harvard researchers identify three distinct friendship types essential for feeling fully surrounded.
- Title: Harvard Researchers: 3 Types of Friendships Needed for Full…
- Summary: Harvard researchers identify three distinct friendship types essential for feeling fully surrounded. Harvard researchers found three friendship types…
- Keywords: harvard, friendships, wellness, aristotle, useful friendships, pleasure-based friendships, perfect friendships, Researchers, Types, Needed, Full, Belonging
- Source: Psychologies — https://psychologies.com/moi/moi-et-les-autres/chercheurs-Harvard-besoin-3-types-amities-differents-sentir-entoures-563713
- Author: Louise Leboyer
- Published: 2026-10-15T13:26:23+00:00
- Read time: 1 min
- Topics: harvard, friendships, wellness, aristotle, useful friendships, pleasure-based friendships, perfect friendships
## Harvard Study on Happiness
Harvard researchers found three distinct friendship types essential for long-term happiness and health.

> Les liens personnels créent une stimulation mentale et émotionnelle qui stimule automatiquement l'humeur, alors que l'isolement la détruit
## Three Friendship Types
Harvard researchers identified three friendship types: useful, pleasure-based, and perfect relationships critical for well-being.

> Ces relations ont tendance à être de nature transactionnelle
## Friendship Types Explained
Useful friendships support work and transactions; pleasure-based friendships involve mutual admiration and enjoyment; perfect friendships elevate behavior to virtue through mutual love.

> Selon les critères d'Aristote, les amitiés parfaites sont celles entre des personnes qui ont un amour mutuel pour quelque chose qui non seulement les rapproche, mais élève leur comportement au rang de vertu
## Key takeaway

Harvard researchers found three friendship types, useful, pleasure-based, and perfect, critical for long-term happiness and health.