日常の気象状況や長期的な気候特性が、人々の行動や健康にどのように影響するかを扱います。気象・気候を一時的な外的条件としてではなく、行動や健康を制約・媒介する環境要因として位置づけています。
This area investigates how daily weather conditions and longer-term climate characteristics influence health and behavior. We treat weather and climate not as transient external conditions, but as environmental factors that can constrain and mediate everyday activities and health outcomes.
Detail
降雨、気温、暑熱、寒冷、積雪といった気象要素が、歩行や外出、慢性疼痛などの健康・行動指標とどのように関連するかを分析してきました。緑地と気候を同時に考慮した研究では、気象条件を踏まえた上でも緑地環境が慢性疼痛と関連することを示し、自然環境と気候の相互作用の可能性を示しています(Yamada et al., 2025)。
また、悪天候時の行動変化に関する研究では、降雨や低温時に歩行量が低下する一方で、屋内空間の利用によってその影響が緩和される可能性を示しました(Yoshida et al., 2025)。さらに、積雪量を操作変数として用いた解析により、身体活動と認知症との関係を検討し、因果推論の精緻化にも取り組みました(Sato et al., 2021)。
We have analyzed how rainfall, temperature, heat, cold, and snowfall relate to indicators such as walking, outings, and chronic pain. Work that jointly considered green space and climate found that green environments were associated with chronic pain even after accounting for weather conditions, suggesting potential interactions between natural environments and climate (Yamada et al., 2025).
Studies of behavioral change under adverse weather indicate that rainfall and low temperatures reduce step counts, while the use of indoor spaces such as shopping malls may attenuate these effects (Yoshida et al., 2025). In addition, we have used snowfall as an instrumental variable to examine the relationship between physical activity and dementia risk, contributing to more refined causal inference (Sato et al., 2021).
Perspective for Urban / Place Design
気象・気候条件を前提とした都市・空間デザインの重要性を示します。屋外空間だけでなく、屋内や半屋外空間を含めた連続的な環境を計画することで、気象条件による行動制約を緩和できる可能性があります。これらの知見は、気候変動時代における健康配慮型の都市・建築デザインを検討する基礎的な知見となります。
These findings highlight the importance of urban and spatial design that explicitly accounts for weather and climate. Planning continuous environments that integrate outdoor, semi-outdoor, and indoor spaces may reduce behavioral constraints under adverse conditions. This perspective is relevant for health-oriented urban and architectural design in the era of climate change.
Related Articles
- Yamada, K., Hanazato, M., Mizunuma, N., Kondo, N., & Kondo, K. (2025).
Association of green space and climatic conditions with chronic pain and chronic widespread pain in older adults.
Urban Forestry & Urban Greening, 128972. - Yoshida, H., Matsuoka, Y., & Hanazato, M. (2025).
Examination of how mall visits moderate the impact of adverse weather on daily step counts.
Journal of Urban Health, 1–14. - Sato, K., Kondo, N., Hanazato, M., Tsuji, T., & Kondo, K. (2021). Potential causal effect of physical activity on reducing the risk of dementia: a 6-year cohort study from the Japan Gerontological Evaluation Study. International Journal of Behavioral Nutrition and Physical Activity, 18(1), 140.
