Excerpt from "Your Phone vs. Your Heart," by Barbara Fredrickson, The New York Times, March 23, 2013:
Our ingrained habits change us. Neurons that fire together, wire together, neuroscientists like to say, reflecting the increasing evidence that experiences leave imprints on our neural pathways, a phenomenon called neuroplasticity. Any habit molds the very structure of your brain in ways that strengthen your proclivity for that habit.
Plasticity, the propensity to be shaped by experience, isn’t limited to the brain. You already know that when you lead a sedentary life, your muscles atrophy to diminish your physical strength. What you may not know is that your habits of social connection also leave their own physical imprint on you.
How much time do you typically spend with others? And when you do, how connected and attuned to them do you feel? Your answers to these simple questions may well reveal your biological capacity to connect.
My research team and I conducted a longitudinal field experiment on the effects of learning skills for cultivating warmer interpersonal connections in daily life. Half the participants, chosen at random, attended a six-week workshop on an ancient mind-training practice known as metta, or “lovingkindness,” that teaches participants to develop more warmth and tenderness toward themselves and others.
Fredrickson, B., Cohn, M., Coffey, K. A, Pek, J., & Finkel, S. M. (2008). Open Hearts Build Lives: Positive Emotions, Induced Through Loving-Kindness Meditation, Build Consequential Personal Resources. Journal of Personality and Social Psychology, 95 (5), 1045–1062.