Sudoku, crossword puzzles and more: does brain training really keep our minds sharp?

Many people regularly solve brain teasers to stay mentally young, as they are afraid of becoming forgetful in old age. But can they really improve our memory and even prevent dementia?

Why can't we tickle ourselves?

Anyone who has ever been tickled for longer than a few seconds knows that it can be real torture - our body compels us to laugh as a reflex. However, anyone who tries to tickle themselves will invariably fail. Why is that?

Tiny Assassins: How Dangerous Are Ticks?

Many people are afraid of ticks because they can carry dangerous diseases. But just how dangerous are they? When is a vaccination recommended?

Why is the world in color?

Roses are red, violets are blue - the world in all its beauty appears colorful and bright. But a closer look reveals a different picture: In reality, the world is not as colorful as we see it.

The addiction atlas of the body

What happens in my body during withdrawal? How long does it take my head to get clean? Is there a vaccination against drugs? Toxicologists, psychologists and doctors explain why our brain poisons itself and what the consequences are when we go to war against addiction.

Why is music so important to us?

Music brings people together, makes us dance, sing, and sometimes even cry. This effect has been scientifically proven.

Einstein's brain: What the gray matter of a genius looks like

What made Einstein's brain different from other people's? And why was the world's most ingenious thinking organ stored in a mayonnaise jar?

Alzheimer's: When adults become children again

In many ways, people with Alzheimer's seem to behave like children. But it is not by choice. Because of the disease, they no longer know what they are doing - and they suffer greatly as a result. The psychiatrist Alois Alzheimer first made the link between changes in the brain and the gradual loss of memory.

10 rules for a good night's sleep

Sleep deprivation increases the risk of depression and promotes obesity. These ten tips can help you get a good night's sleep.

Can neuromarketing manipulate our brains?

In traffic, at a soccer game, or on the Internet - we encounter advertising messages everywhere. Can they seduce us without us noticing, and can our brains be influenced by neuromarketing?