After a workout I usually do a long cool down of about 1/4 of what my workout was, I need to because of my body build that is high maintenance (short tendons). I also drink a bunch of water to rehydrate, or drink something hydrating with electrolytes, stretch some, and maybe an hour or so later eat a nutritious snack to help start the repairs going sooner.
I am no health/nutrition expert, but I noticed I recover sooner and with more flexibility/less stiffness when I do a full cool down and eat food that helps repairs and drink water to help detox.