What do we all know about dreams?

We have long thought that sleep is just a way to “recharge our batteries”. However, that attitude is changing. From weight control, through learning abilities, to defense against diseases like Alzheimer’s … Scientists around the world are looking for an answer to the question why do we sleep?

Research on birds, conducted at Max Planck University, reveals that monohemispheric sleep, a way of sleeping characteristic of birds, seals, whales and dolphins, proves that sleep is much more than just storing energy. Scientists see the sleeping brain as a powerful machine.

A special question is how insomnia affects decision-making, food intake, and how the brain solves the side effects of daily activities during sleep.

Where man came from

Is time travel possible?