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.

Today, women will celebrate Galentine’s Day, a holiday trumpeting the joys of female friendships.

The holiday can trace its origins to a 2010 episode of “Parks and Rec,” in which the main character, Leslie Knope, decides that the day before Valentine’s Day should be an opportunity to celebrate the platonic love among women, ideally with booze and breakfast food.

In the years since the episode aired, the fictional holiday has caught on in the real world.

As we lick our Valentine card envelopes and slip into something more comfortable, it’s a good time to ponder our sexual relationships.

Have you ever used a public charging station to charge your mobile phone when it runs out of battery? If so, watch out for “juice jacking”.

Cybercriminals are on the prowl to infect your mobile devices such as smartphones and tablet computers and access your personal data, or install malware while you charge them.

Specifically, juice jacking is a cyber attack in which criminals use publicly accessible USB charging ports or cables to install malicious software on your mobile device and/or steal personal data from it.

Despite flying being the single fastest way to grow our individual carbon footprint, people still want to fly. Passenger numbers even grew by 3.3% globally last year alone. The hype around “Flygskam” – a global movement championed by climate activist Greta Thunberg that encourages people to stop traveling by plane – seems to have attracted more media attention than actual followers.