This is an Oak tree outside of my house that is estimated to be over a hundred years old. I spent a lot of my youth playing around that tree. Unfortunately, it is sick and may have to be cut down soon :(. But still love the trees in your neighborhood they give you oxygen!
Are you getting enough Vitamin N? Here is a great article showing the benefits of getting outside and involved in the outdoors. Nature is what we have inhabited for the majority of our human evolution so its benefits can only be so obvious. We should return to that space of naturalness (ha-ha). Anyways hurry up and read the article so you can go outside (I don't care if it is raining, bring an umbrella!).