A Change in Bathing Style May Improve Mental Fitness

Takaaki Kubo^1*, Tomonori Yasuda¹, Yoshihisa Masumitsu¹, Yoshihiro Iwashita¹, Satoshi Watanabe², Taichi Ishizawa², Mitsuo Tsunakawa², Shingo Yano², Junichi Iimaya¹

¹Department of Rehabilitation, Faculty of Health Sciences, Kumamoto Health Science University, Kumamoto, Japan.
²Products Development Department, Bathclin Corporation, Ibaraki, Japan.

DOI: 10.4236/health.2015.72031                

Abstract

Frequent bathtub bathing (BB) improves the mental health of middle-aged and older Japanese in-dividuals. This study investigated the chronic mental health effects of BB, maintaining warmth using an insulating sheet and sleeping bag after bathtub bathing (BBW), and bathtub bathing with herbal extracts (BBH) in healthy young adults. The study involved healthy young adults who habitually showered, as opposed to bathing. In the first experiment, 18 participants were randomly assigned to either the BB or BBW groups for 14 consecutive nights. After a 2-week washout period, the participants were asked to switch their bathing styles (a cross-over design). In the second experiment, 20 participants were randomly assigned to the BB or BBH group. The herbal extracts for the BBH group contained angelicae radix, aurantii nobilis pericarpium, chamomile, and zingiberis rhizoma. After a 2-week washout period, these participants also switched to the other bathing style. The participants’ mental conditions pre- and post-intervention were assessed using the Profile of Mood States-Brief Form questionnaire, Japanese version, and were statistically analyzed. The participants’ Anger-Hostility score converged to an average (50 points) in the post-BBW and post-BBH participants, and there were no significant differences in BB. The Confusion change rate was significantly different in the first experiment (BB versus BBW). The Depression-Dejection and Fatigue change rates were significantly different in the second experiment (BB versus BBH). Our findings suggest that changing bathing style from showering to BBW or BBH improves the POMS Anger-Hostility scores of healthy young adults.

Keywords

Bathtub Bathing, Warmth, Herbal Extracts, Mental Fitness, Healthy Young Adults

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Patel, V., Flisher, A.J., Hetrick, S. and McGorry, P. (2007) Mental Health of Young People: A Global Public-Health Challenge. Lancet, 369, 1302-1312. http://dx.doi.org/10.1111/j.1365-2214.2007.00778_2.x
[2]	Hunt, J. and Eisenberg, D (2010) Mental Health Problems and Help-Seeking Behavior among College Students. Journal of Adolescent Health, 46, 3-10. http://dx.doi.org/10.1016/j.jadohealth.2009.08.008
[3]	Uchida, C. (2010) Apathetic and Withdrawing Students in Japanese Universities—With Regard to Hikikomori and Student Apathy. Journal of Medical and Dental Sciences, 57, 95-108.
[4]	Ishizawa, T., Watanabe, S., Yano, S., Aburada, M., Miyamoto, K. and Ojima, T. (2012) Relationship between Bathing Habits and Physical and Psychological State. Journal of the Japanese Society of Balneology, Climatology and Physical Medicine, 75, 227-237.
[5]	Hayasaka, S., Shibata, Y., Goto, Y., Noda, T. and Ojima, T. (2010) Bathing in a Bathtub and Health Status: A Cross- Sectional Study. Complementary Therapies in Clinical Practice, 16, 219-221. http://dx.doi.org/10.1016/j.ctcp.2010.05.002
[6]	Ito, F., Furuya, K., Takagi, T., Motoki, Y. and Kiyama, T. (1982) Clinical Studies Of Physiological Effects of Natril Sulfas Siccatus Spring with Herbal Extract. Journal of the Japanese Society of Balneology, Climatology and Physical Medicine, 46, 84-92.
[7]	Watanabe, S., Imanishi, N., Fujiwara, T., Kawasaki, Y. and Ohtsuka, Y. (1998) Effects of Bathing with Cutting Crude Drugs. Journal of the Japanese Society of Balneology, Climatology and Physical Medicine, 61, 135-140.
[8]	Yorozu, H. and Komoto, Y. (1992) The Effect of Crude Drug Extracts Bathing. Journal of the Japanese Society of Balneology, Climatology and Physical Medicine, 55, 105-112.
[9]	Horikiri, Y., Hiyoshi, T., Kawahira, K., Tanaka, N., Watanabe, S., Fujiwara, T. and Kawasaki, Y. (1998) Circulatory Effects of Bath Agent with Senkyu and Chimpi Extract in Healthy Men. Journal of the Japanese Society of Balneology, Climatology and Physical Medicine, 61, 95-100. (In Japanese)
[10]	Takehara, H., Yanase, T., Nishikawa, K. and Murakami, K. (2001) The Survey on Bathroom Environment and Residential Consciousness (Part 2). On the Residential Consciousness and Interest in Bathing. Journal of Home Economics of Japan, 52, 1005-1013. (In Japanese)
[11]	Iiyama, J., Horikiri, Y., Kawahira, K. and Tanaka, N. (2003) The Effects of Warm Water Bathing on Renal Function. Journal of the Japanese Society of Balneology, Climatology and Physical Medicine, 66, 85-90.
[12]	Jordan, H. (1966) Balneotherapie und Blutdruck-biometrisch betrachtet. Zeitschrift für angewandte Bader- und Klimaheilkunde, 13, 380-389. (In German)
[13]	Jordan, H. and Wagner, H. (1969) Reaktionen der Puls- und Atemfrequenz auf einen Klimareiz an Hand der Streuung der taglichen Anderungen. Zeitschrift für angewandte Bader- und Klimaheilkunde, 16, 404-409. (In German)
[14]	Jordan, H. (1970) Normalization Effect of Health Resort Therapy, a Biometric Problem. Archiv für Physikalische Therapie, 22, 3-8. (In German)
[15]	Yoshizaki, H., Suzuki, J. and Muranaka, M. (1988) Changes of Cardiovascular Parameters during Serial Immersion in Hot Springs. Journal of the Japanese Society of Balneology, Climatology and Physical Medicine, 51, 181-193. (In Japanese)
[16]	Taguchi, F., Suzuki, S., Monou, H., Itoh, N., Yoshizaki, H. and Kogure, T. (1986) Changes of Plasma Catecholamine Concentration during Serial Immersion in Hot Springs, Special Reference to the Relationships with Efficacy of Balneotherapy. Journal of the Japanese Society of Balneology, Climatology and Physical Medicine, 49, 131-138. (In Japanese)
[17]	Tei, C., Horikiri, Y., Park, J.C., Jeong, J.W., Chang, K.S., Toyama, Y. and Tanaka, N. (1995) Acute Hemodynamic Improvement by Thermal Vasodilation in Congestive Heart Failure. Circulation, 91, 2582-2590. http://dx.doi.org/10.1161/01.CIR.91.10.2582
[18]	Imamura, M., Biro, S., Kihara, T., Yoshifuku, S., Takasaki, K., Otsuji, Y., Minagoe, S., Toyama, Y. and Tei, C. (2001) Repeated Thermal Therapy Improves Impaired Vascular Endothelial Function in Patients with Coronary Risk Factors. Journal of the American College of Cardiology, 38, 1083-1088. http://dx.doi.org/10.1016/S0735-1097(01)01467-X
[19]	Kihara, T., Biro, S., Imamura, M., Yoshifuku, S., Takasaki, K., Ikeda, Y., Otuji, Y., Minagoe, S., Toyama, Y. and Tei, C. (2002) Repeated Sauna Treatment Improves Vascular Endothelial and Cardiac Function in Patients with Chronic Heart Failure. Journal of the American College of Cardiology, 39, 754-759. http://dx.doi.org/10.1016/S0735-1097(01)01824-1
[20]	Masuda, A., Koga, Y., Hattanmaru, M., Minagoe, S. and Tei, C. (2005) The Effects of Repeated Thermal Therapy for Patients with Chronic Pain. Psychotherapy and Psychosomatics, 74, 288-294. http://dx.doi.org/10.1159/000086319
[21]	Iiyama, J., Horikiri, Y., Kawahira, K. and Tanaka, N. (2007) Effects of Whole Body Warm Water Immersion on Indocyanine Green (ICG) Excretion Test in Healthy Human. Journal of the Japanese Society of Balneology, Climatology and Physical Medicine, 70, 215-222.
[22]	Okada, A. (1991) Hot Water Bathing and Neurotransmitters. Journal of the Japanese Society of Balneology, Climatology and Physical Medicine, 55, 3-9. (In Japanese)
[23]	Amsterdam, J.D., Shults, J., Soeller, I., Mao, J.J., Rockwell, K. and Newberg, A.B. (2012) Chamomile (Matricaria recutita) May Have Antidepressant Activity in Anxious Depressed Humans: An Exploratory Study. Alternative Therapies in Health and Medicine, 18, 44-49.
[24]	Pinto, S.A., Bohland, E., Coelho, C.P., Morgulis, M.S. and Bonamin, L.V. (2008) An Animal Model for the Study of Chamomilla in Stress and Depression: Pilot Study. Homeopathy, 97, 141-144. http://dx.doi.org/10.1016/j.homp.2008.04.001
[25]	Takamatsu, M., Nakashima, Y., Qian, L. and Katoh, Z. (2009) Study on Quantification of Mental Effect by Hue of Solution. Transactions of Japan Society of Kansei Engineering, 8, 799-804. (In Japanese)