Effects of a Bovine Alpha S1-Casein Tryptic Hydrolysate (CTH) on Sleep Disorder in Japanese General Population
This study describes the effect of bovine alpha-S1 casein tryptic hydrolysate (CTH) in a representative sample of day-time workers from the general population of Japan with the occurrence of insomnia during the preceding six months. To investigate this issue, 32 subjects, aged between 25 and 40 years, were examined for the subjective sleep quality using the Japanese Pittsburg Sleep Quality Index (PSQI-J). CTH significantly improves the PSQI total score of the treated subjects. It particularly improves the sleep quality after