Friendship is essential for our health and well-being. Yet many of us get so caught up in work, that we may not make enough time to nurture friendships. According to this fascinating study of adults who relocate and new college students, you are more likely to become “casual” friends after spending 43 hours together in a 3 week span. Casual friends become real friends somewhere between 57 hours and 164 hours together over 3 months. Time spent together is important, as is everyday talk—catching up, joking around, and meaningful conversations. So make an effort to check-in and get together with your friends (old and new)!