27. Restak, R. (2003), op. cit., p. 48.

28. Kramer, P. (2005). Against depression. New York: Penguin.

29. Ibid.

30. Hollon, S., Jarrett, R., Nierenberg, A., Thase, M., Trivedi, M., & Rush, A. (2005). Psychotherapy and medication in the treatment of adult and geriatric depression: Which monotherapy or combined treatment? Journal of Clinical Psychiatry, 66[4], 455–468.

31. Ratey, J. (2008), op. cit.

32. Rosenthal, N. (2006). Winter blues. New York: Guilford Press.

33. Ibid.

34. Ibid., p. 78.

35. Ibid.

36. Schwartz, J. M. (1996). Brain lock: Free yourself from obsessive-compulsive disorder. New York: Harper Collins.

37. Ibid.

38. Neziroglu, F., Bubrick, J., & Yaryura-Tobias, J. A. (2004). Overcoming compulsive hoarding. Oakland, CA: New Harbinger Publications.

39. Ibid., p. 37.

40. Saxena, S., Brody, A. Maindment, K., Smith, E. Zohrabi, N., Katz, E., Barker, S., & Baxter, L. (2004). Cerebral glucose metabolism in obsessivecompulsive hoarding. American Journal of Psychiatry, June, 161, 1038–1048.

41. Saxena, S. (2007). Is compulsive hoarding a genetically and neurobiologically discrete syndrome? American Journal of Psychiatry, 164[3], 380–384.

42. Sapolsky, R. (1994). Why zebras don’t get ulcers. New York: W. H. Freeman and Co.

43. Sapolsky, R. (1992). Stress, the aging brain, and the mechanisms of neuronal death. Cambridge, MA: MIT Press.

44. Kramer, P. (2005), op. cit.; Sapolsky, R. (1992), op. cit.

45. Flaherty, A. (2004). The midnight disease: The drive to write, writer’s block and the creative brain. Boston: Houghton-Mifflin.

46. Dement, W., & Vaughn, C. (2000). The promise of sleep. New York: Bantam Dell.