Yawning and tearing all the time during the day indicates a lack of sleep at night, or poor sleep quality, resulting in poor mental performance during the day trying to sleep. Adults should maintain at least six hours of sleep at night to ensure a better quality of sleep. If the sleep time is not enough, or sleep late, as well as the sleep process often wake up, or dream more, will lead to the brain and body at night do not get enough rest, so always yawn, tears, want to sleep during the day. This situation will only get better after a period of adjustment of work and rest, going to bed before 10 pm and getting up at 6-7 am. If you have sleep disorders at night, such as difficulty falling asleep or short duration of sleep, take medication to help you sleep. After a period of adjustment, this condition will improve.