인간의 몸이 최고 효율을 낼 수 있는 실내온도

People start to struggle once indoor temperatures exceed around 23C/73F
Change in qualitylperformance at different temperatures
Sleep duration
Sleep efficiency
Work productivity
School learning*
(hours)
(% of time in bed
(relative rate of task
annual learning loss)
spent asleep)
completion)
7.5
100
85
7.0
95
80
~0.5
6.5
90
75
-1.0
6.0
85
5.5
70
80
1.5
20C
30C
20C
30C
20C
30C
20C
30C
68F
86F
“Effect of 5 days of outdoor temnperatures ata given level
earning loss disappears almost entirely in schools with air conditioning
Sources: Baniassadi etal 2024; Goodman etal 2018; Seppanen etal 2006
FT graphic: John Burn-Murdoch / @jburnmurdoch
OFT