Candy is what gets you through a long life drawing session!
I found some pictures the other days from our life drawing classes in the 2nd year (I think) of the Bachelor Program in Industrial Design at Umeå Institute of Design (Designhögskolan i Umeå). Unfortunately I haven't done any life drawing sketching or clay modeling since, but I can recommend it as one tools to improve your sketching. Life drawing can be hard, frustrating, stressful but also very rewarding when you get it right.
