ÎçÒ¹¸£Àû1000¼¯ºÏYou should turn off fans when it's too hot – but how hot is too hot? Fans can make you hotter rather than cooler, but the temperature at which you should turn them off depends on several factors, including your age and the humidity level News
ÎçÒ¹¸£Àû1000¼¯ºÏHow ageing on Earth mimics the effects of space travel Life on the International Space Station may feel distant, but columnist Graham Lawton finds that studying how astronauts experience accelerated ageing could help us fight similar effects on Earth related to sedentary lifestyles, disrupted circadian rhythms and social isolation Comment