Cách sử dụng
Insomnia refers to the inability to fall asleep or stay asleep, which can lead to a feeling of tiredness during the day. It is a medical condition that affects many people and can occur due to various reasons such as stress, anxiety, or a sleep disorder. The word 'insomnia' can be used when describing difficulty sleeping or to explain symptoms of tiredness and sleep deprivation. For example, "I have insomnia, so I struggle to fall asleep at night," or "Her insomnia caused her to feel exhausted throughout the day."