The sun is delicious. The sun is also good for you. The sun makes you look good.

And yet Americans have an almost belligerent attitude towards the sun. Hats, sunscreen, long sleeved shirts, umbrellas. Adults, children, everyone is perpetually hiding from the sun, and they look kinda sickly.

Can the sun give you skin cancer? Yes, of course. (In the same way a sauna can give you a heart attack i suppose). But the benefits to overall wellness are incredible.

Another thing is that I personally wouldn't consider 4 out of the 5 things you listed to feel good, and in a few cases I don't even find them to be linearly beneficial. The kind of cardio exercise you mentioned (all exercise is cardio BTW) is something I don't enjoy before or after. Things like bike riding have both positives and negatives, and I am not a fan of the high cortisol state that results. I'm not saying riding bikes is bad, but if I was totally oblivious to the health benefits, I would find it to be a slog once I got over the novelty

One that only belongs in careful moderation.

Edit: I'm getting downvoted, so I'll elaborate. The sugar content of fruit is not great for you. The beneficial effects of the fiber and vitamin content do not offset the detrimental effects of the sugar.

Treat fruit as you would a dessert. In moderation.

As far as antioxidants go, yeah... those are totally overrated. The human body, with the exception of Vitamin C, creates its own antioxidants. Adding exogenous antioxidants isn't particularly beneficial and can also come with some drawbacks. Any benefit you get from fruit antioxidants is outweighed by fructose. Sure, feel good about getting some anthocyanins and whatever from the occasional blueberries, but by no means do you need those, and don't pound blueberries every single day.