This makes us more likely to sleep poorly, wake early and be unable to get back to sleep.

Their attention span decreases, they are usually hyperactive and distractible, they sleep poorly, and their school performance deteriorates.

Often people feel disorganized, tired, have trouble concentrating, sleep poorly and have vivid dreams, and experience change in appetite.

Half of those surveyed felt that they often slept poorly and believed it had an impact on training and performances.

There are the common ones, such as feeling low, losing interests, sleeping poorly and struggling to concentrate.