Serotonin is a neurochemical that plays a critical role in the way the brain controls our thoughts and feelings. For example, many antidepressants are...
Accelerating the transition to an ever more digital existence, the coronavirus pandemic has tightened tech giants' grip on billions of customers' lives.
An English teacher whose online lessons have reached thousands of children this year said the COVID-19 pandemic had "utterly transformed" her working life.
Overcrowded housing has helped to spread COVID-19 in England and may have increased the number of deaths, according to research by the Health Foundation.
