New study: the 4 ways of sleeping and their possible health consequences. Poor sleep can cause metabolic disorders such as diabetes or obesity, neurodegenerative diseases or mental health problems.

How do you know if the way you sleep is appropriate? A study with thousands of people offers answers. María Ángeles Bonmatí: There is no single way to sleep poorly or is there diversity among “bad sleepers”? Is this an immutable condition or can it change over time?