Validate how you feel in the heatwave

London’s Institute of Psychiatry found that, above 18°C, each 1°C increase in temperature is associated with a 3.8% increase in suicide and a 5% increase in more violent methods of suicide – during the UK’s 1995 heatwave, suicide increased by 46.9%. Similar results have been observed in other parts of the world. One study demonstrated that the risk of death for patients with substance misuse rises by as much as 5% with every 1°C rise above roughly 18°C. Stay cool.