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Why do we usually sleep at night? What happens when we don’t sleep? Expert insights into this essential part of our lives

Why do we usually sleep at night? What happens when we don’t sleep? Expert insights into this essential part of our lives

SLEEP is as essential to our health as food and water. It is important to a number of brain functions, including how nerve cells communicate with each other. We sleep for a third of our lives and there are many restorative processes going on during sleep that are needed to stay healthy. Why do we usually sleep at night? What happens when we don’t sleep? On World Sleep Day, Nadine Dreyer asks a group of experts to tell us more about this essential part of our lives. Why do we need sleep and why do we sleep better at night?…
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Dakar’s clandestine taxis are essential for daily travel – but they’re illegal

Dakar’s clandestine taxis are essential for daily travel – but they’re illegal

PAPE SAKHO, GAELE LESTEVEN, MOMAR DIONGUE and PASCAL POCHET AFRICA'S major cities are growing at a rapid pace. In Dakar, Senegal’s capital, for instance, the population has almost doubled in 20 years, reaching 4 million inhabitants today. But in most metropolises, like Dakar, planning isn’t keeping up with the expansion. One example of this is the city’s transport system. Public transport plays a fundamental role in providing access to any city. However, in many cities, it’s lacking, particularly in areas of urban sprawl. This worsens the quality of life for people living in these areas, where there is a shortage…
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