High outdoor temperatures are not only a strain on the body, but mentally stressful as well. So they’re particularly problematic for people with a mental health condition. “On hot days people are less alert and productive, mental illness symptoms worsen, and admissions to psychiatric hospitals increase,” says Dr Andrea Benecke, president of Germany’s Federal Chamber of Psychotherapists (BPtK). “The mentally ill are among those at greatest risk.” At especially high risk, according to the BPtK, are people with schizophrenia, an addictive disorder, dementia, depression, or who take certain psycho…