Sex Difference in Cognitive Aging for Letter Fluency and Semantic Fluency

Takeshi Hatta^1*, Taketoshi Hatta², Emi Ito³, Akihiko Iwahara⁴, Junko Hatta⁵, Chie Hotta¹, Naoko Nagahara⁶, Kazumi Fujiwara¹ and Hiroyuki Hamajima³

¹Kansai University of Welfare Sciences, Japan

²Gifu University Medical Sciences, Japan

³Nagoya University, Japan

⁴Wakayama Prefectural Medical University, Japan

⁵Aichigakuin University, Japan

⁶Osaka Junior College of Health Science, Japan

^*Corresponding Author: Takeshi Hatta, Kansai University of Welfare Sciences, Japan, Tel: 81 72-978-0088 Email: