This is one of the reasons I go out solo at dawn if I'm not playing with others....Not just physical health but mental health too.
I managed to sneak out late afternoon on my own for 9 holes. I remember on about the 4th hole I was completely on my own, the sun was shining, all I could hear was the birds it was quite warm and I just had one of those moments where I thought to myself life doesn't get much better than this. Then there is the interaction and "banter" with others at the club and so on.
I run as well so golf is not a primary exercise for me but it is certainly good. I logged a round on my running watch from arrival at the car park and departure just to see. It was something over 6 miles of walking and 1200 calories. I ended up with over 25,000 steps that day also.
So all in all I would say it will have impact on both physical and mental health.
I'm always baffled by players' reluctance to play from forward tees, if they haven't got the distance.I’m always baffled by senior players reluctance too play from forward tees. If you haven’t got the distance anymore why make life difficult?