Living on time scientifically and maintaining it for a long time not only keeps the body healthy but also reduces the risk of cancer. Sleeping in, sleeping more than 8 hours a day is one of the factors contributing to the increased rate of breast cancer.

Pubic hair growth is one of the signs that a child is reaching puberty. So how long after pubic hair growth does menstruation occur? These changes in the body are of interest to science and explained in detail. To better understand the time of puberty in children, you first need to understand the early signs of the first menstrual cycle in children.

Many parents are confused when their newborn cries and refuses to sleep when put down. To deal with this situation, nurse and author Tracy Hogg shares how to put your baby down gently without waking him up. Have you ever heard of the pick up and put down sleep training method?

In fact, the biological clocks of men and women are very different. Most women know that at menopause, their eggs have decreased in quantity and quality, and age plays a huge factor in the ability to conceive. In contrast, a man produces sperm throughout his life. It is noted that between the ages of 30 and 50, there is a slight decline in fertility (including a decrease in sperm motility by 37%, an increase in the content of abnormal sperm by about 5 times/abnormal sperm shape, and a decrease in semen volume by about 30%), but the quality of a man's semen does not decrease. In this article, we will provide useful information about the differences in biological clocks between the two sexes.

Exercise is a very beneficial activity for health, however, for the exercises to be effective, in addition to paying attention to movements and diet, the time of day to exercise is also an important issue that you need to pay close attention to.

Difficulty sleeping, tossing and turning is one of the conditions that impair sleep quality, affecting health.Although you have tried many methods, such as reading books or turning off electronic devices, they don't work. So how to fall asleep quickly?

The body's circadian rhythm or biological clock plays an important role in many processes such as sleep-wake cycles, hormone secretion, cardiovascular health, homeostasis, and body temperature regulation. Melatonin is an important hormone in synchronizing the biological clock.

Jet lag can cause daytime fatigue, feeling unwell, difficulty staying awake and gastrointestinal problems. Jet lag while traveling is usually temporary, but can still significantly reduce the comfort of your vacation or trip.

There are many different reasons why we cannot sleep at night, such as caffeine, noise, illness... Recently, researchers have added another cause of insomnia that many people have never thought of, which is LED energy-saving light bulbs that are turned on when it is dark.

Some studies have suggested that the lunar cycle may affect sleep, but so far the research is only suggestive, with much still unclear and conflicting. Overall, study participants slept slightly less on nights when the moon was full or bright than when the moon was new or dim.

Regular exercise has many benefits including better sleep, which can promote relaxation, reduce anxiety and normalize your circadian rhythm. Exercise also raises your body temperature, and when your body temperature drops, it makes you feel sleepy. So is exercise before bed good or bad?