Interesting concept. I live in a rural northern town and every weekend I go walking in the countryside round reservoirs and through forests.
In my line of work it's very rare for jobs to be centred outside of London and I could earn a lot more there, yet everytime I go and marvel at how great London is I never quite get the same feeling as when I have a relaxing nature walk at 7am before everybody is up.
It definitely helps. I've enjoyed getting in touch with my rural side since moving out of the M25, and doing volunteer rangering and conservation. It's something you can do in London in parks and whatnot but there is something about the countryside that makes it worthwhile.
It helps to put your phone in your pocket and take your earphones out too, even if it's just for ten minutes.
You don't have to limit yourself to enjoying the nature that's already there either: Grow a houseplant. Get a bird-feeder. Buy or make some seed-bombs and throw them in some empty or unused land. There's a saying I heard once, the best time to plant a tree was 20 years ago, the second best time is today.