Stock markets are rebounding on the back of the newly agreed US$2 trillion American fiscal stimulus plan. It comes after a week that was the worst in history for the Dow and many others around the world. My impression is that the unfolding global recession has now been fully priced into stocks by investors.

Public health officials consistently promote hand-washing as a way for people to protect themselves from the COVID-19 coronavirus. However, this virus can live on metal and plastic for days, so simply adjusting your eyeglasses with unwashed hands may be enough to infect yourself. Thus, the Centers for Disease Control and Prevention and the World Health Organization have been telling people to stop touching their faces.

Conspiracy theories have a long history, but the actual term “conspiracy theory” emerged much more recently. It was only a few decades ago that the term took on the derogatory connotations it has today, where to call someone a conspiracy theorist functions as an insult.

So it may come as no surprise that there is even a conspiracy theory about the origins of the label. This conspiracy theory claims that the CIA invented the term in 1967 to disqualify those who questioned the official version of John F Kennedy’s assassination and doubted that his killer, Lee Harvey Oswald, had acted alone.

On October 3 1849, the famed American horror and mystery author Edgar Allan Poe was found in a complete state of delirium – incoherent, dishevelled and wearing a stranger’s clothes. Four days later, he died in a hospital. His final words were “Lord, help my poor soul”.

In an age of deepfakes and alternative facts, it can be tricky getting at the truth. But persuading others – or even yourself – what is true is not a challenge unique to the modern era. Even the ancient Greeks had to confront different realities.

Having trouble sleeping? Nervous about an important interview? Smelling your partner’s worn clothing may help improve your sleep and calm your nerves.

While it may sound strange to smell your partner’s clothing, these behaviors are surprisingly common. In one study, researchers asked participants if they had ever slept with or smelled their partners’ worn clothing during periods of separation. Over 80 per cent of women and 50 per cent of men reported they had intentionally smelled an absent partner’s clothing. Most of them said they did so because it made them feel relaxed or secure.