I always feel kind of sad when autumn comes here in Canada. It always hit you with cold rain, suddenly cold weather and after couple of days it's warm again but you cannot trust that warmth any more, you know what is coming and soon, may be even next day.

Due to my affliction, I like to call it that, as I do not like word "disease", I cannot jump or jog, but I still do lots of exercises with light weights and a ball and walk twice every day, even around my apartment in winter when it's too slippery. Last winter I was sick with cold only once and very lightly and I think my exercises and total regime helped.
Of course when you have to sit at your desk all day 5,6 days a week, it's much harder to keep your health, especially in winter, but still some active exercise after work or before can greatly help. I am not going to mention a good diet. Everybody nowadays knows how important that is. I have a bottle of vitamin C on a shelf in my kitchen and cannot imagine start my day without it.
I do not like vegetables for some reason but I blend and drink them with some nut milk or plain water because I know how important natural vitamins are. In my life I saw people who ate mostly meat and remember how terrible they looked because we need fresh grass same as animals, may be just different grass. In order to stay healthy by eating meat mostly, we have to eat preferably raw meet by catching wild animals like rabbits for example and eating them right away, while they are still warm and civilized people cannot do that, that means we have to eat grass (vegetables) too and lots of it and if we want meat - free range or grass fed animals are the best. And if you cannot afford such meat, you stick to eggs, less expensive fish and some grains with no butter or sugar in it. That's what my life experience tells me to do and I am trying to follow it. Of course sometimes on a hot day you want some ice cream, cannot blame you...
So, enjoy good days of autumn, don't fret over bad days - more will follow anyway and check your closet re winter boots and jackets and hats, you'll need them soon. I am out for a walk.