Why is it that when I try to run:

• my feet feel like they each weigh an extra kilogram;
• I am moving as if through a sea of molasses;
• the wind is blowing in my face no matter which way I turn; and,
• there is this weird sticky substance on the soles of my running shoes which make it more difficult lifting my knees?

Well that's what you get for not having gone jogging for three weekends in a row.