People need sleep because it is a necessary condition to maintain normal levels of cognitive functions such as speech, memory, creative thinking and flexibility.
Women need more sleep than men, which is why women tend to be more grumpy when they get up early in the morning.
According to Professor Jim Horne, a sleep expert from Loughborough University (UK), beta blockers used to treat blood pressure have long been considered the culprits for scary
Previously, many scientists believed that people who stayed up at night would tend to love themselves and be intelligent, but a new study showed,
People who stay up late and wake up late the next morning often have better thinking and analytical abilities than early sleepers.
Most, if not even society, complain that they are always lacking in sleep. But that is only imagination