There was a time when one earner could support an entire family. However, due to escalating costs in the 1970s, it became necessary for wives to enter the workforce. By the 1990s, even two incomes were insufficient, leading families to abandon savings. By the 2000s, with both partners working and no savings, families began borrowing well beyond their means to cope with inflation.

We spend a third of our lives sleeping. But do we really need those eight hours of sleep a day? Does that leave us feeling great and in a good mood? Or could we spread our hours of sleep throughout the day so that two or three hours would be enough?

Tardigrades (/ˈtɑːrdɪɡreɪdz/), known colloquially as water bears or moss piglets, are a phylum of eight-legged segmented micro-animals. They were first described by the German zoologist Johann August Ephraim Goeze in 1773, who called them Kleiner Wasserbär 'little water bear'. In 1776, the Italian biologist Lazzaro Spallanzani named them Tardigrada, which means 'slow walker'.

Life in North Korea still holds many secrets.

How do people live in this country that is cut off from the rest of the world? We take you on a fascinating tour de force through gyms, riding clubs, water parks, schools, and sports academies.

Archaeologists unearth ancient tombs and embark on underwater expeditions. The search brings us to Ancient Egypt, to Attila, the King of the Huns, and to the infamous Bermuda Triangle. Spanning everything – from historical figures to lost relics and modern urban legends.

How much truth is there to them?

According to Australian sustainability researcher Xuemei Bai, "urban life must save the planet!" Climate economist Gernot Wagner says suburbs are "climate killers," with CO2 emissions two to three times higher than cities or rural areas.

Over two-thirds of the world's population is predicted to live in cities by 2050. While urban measures like building renovations or electric buses impact more people, the challenge is to create sustainable and liveable cities that meet the diverse needs of each community.

The history of tax returns is also the story of how the state slowly became more centralised and more controlling.

From historical documents to the most contemporary and computerised forms, this is the history of income tax returns (and tax evasion).

Tidying, clearing out, decluttering: social media is awash with advice on how to simplify or improve your life by living with less things.

Minimalists want to cut down on worldly possessions and even people, getting rid of toxic people in their lives. But does minimalism make them happier?

The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Romans conquered most of this during the Republic, and it was ruled by emperors following Octavian's assumption of effective sole rule in 27 BC.

The western empire collapsed in 476 AD, but the eastern empire lasted until the fall of Constantinople in 1453.

How do you get a healthy, restful night's sleep?