Exercising Outside

I am about to go outside for some exercise. Yes, this is probably the coldest day of the year so far. But, I think it is so important for your energy level and for your health to get some exercise outdoors each day. Each day, regardless of the weather, I like to go outside. Today, I will rake. I know, it is December. But the yard isn't completely raked out yet and I am starting to get concerned that the snow will fall on the leaves. I have no idea if that is good for the lawn or not.