Richard Schwartz

In all marriages, couples need to find the right balance between togetherness and separateness. Too much togetherness and you end up feeling stifled, a little claustrophobic, and you lose the sense of curiosity about the other person that really is essential to keeping vitality in a marriage. Too much separateness and people tend to drift apart, feel less vivid to each other, and drift into relationships with people that they’re spending more time with. The right balance for a particular couple varies a huge amount. It probably varies more than we would have thought some years ago and — unfortunately — varies between individuals within a couple. The right balance for one might not feel right for the other. Negotiating that is a big job in a marriage.

More of the couples we see who are living apart are doing so for circumstances beyond their control and just trying to make it work. But there are some — and they tend to be the older couples coming together at a later point in their life — who are established and comfortable enough in their lives that they don’t want to complicate it by rearranging everything to be together.

What you lose in those separate living arrangements is the experience of physical closeness, the shared sensory experiences — touch, smell, warmth, the full presence of another person — and I do think that adds something to the sense of closeness. It’s a part of our biology of connection that digital technology just doesn’t give us.

There was a huge meta-analysis out of Brigham Young University a number of years back that found that several kinds of social disconnection shorten the lifespan. Living alone, apart from the frequency of seeing people, is an independent risk factor for a shorter life. Interestingly, they found that that wasn’t true for older people. But during the rest of life, that does seem to be true. You can’t go from those huge studies to saying what’s best for particular people. But we are biologically designed to thrive better in the physical presence of others.