The state of tadpoles is related to many factors. Dr Alice Domar, assistant professor of Obstetrics and Gynecology and reproductive biology at Harvard Medical College, said: "Tadpoles provide half of the genetic code for the next generation. If we want to ensure the health of our children, we must strive to protect the vitality of tadpoles. The following factors affecting the "swimming speed" of tadpoles should be avoided as far as possible.

Use anti-alopecia drugs, etc.The Food and Drug Administration (FDA) has warned that finasteride, which is used to treat hair loss, has been found to reduce male hormone activity. Some drugs for BPH may also lead to infertility or poor semen quality. These side effects may decrease or disappear after men stop taking drugs. So, when preparing for pregnancy, ask your doctor to see what other drugs can affect sperm quality.

Often ride a bicycle.Cycling can squeeze the scrotum, increase the temperature of the testicles and make the tadpoles suffer more. Moreover, long-term pressure from the seat may also damage the blood vessels associated with the reproductive system. It is recommended to exercise to keep the scrotum in its natural state, such as walking and running.

Take a hot spring and a hot bath.Soaking in a hot tub can relieve muscle soreness after long exercise, but frequent hot baths or prolonged stay in a steam or sauna room can overheat the testicles and inhibit sperm production.

Drink too much coffee.A moderate amount of caffeine can help tadpoles swim faster towards their targets and make them happier, but too much caffeine has more disadvantages than advantages. Drink up to 2 to 3 cups of coffee a day, including caffeinated sports drinks. Also be aware that coffee addiction may mask signs of physical discomfort, such as excessive fatigue.

Over fifty.The age of men has an important influence on the pregnancy rate and fertility of women. Some studies have found that father's age is related to children's autism and schizophrenia.

Smoking and drinking.Drinking a little wine every day may be good for the heart, but bad for sperm. Drinking and smoking can damage tadpoles, reduce sperm vitality and quantity, and then affect the success rate of "human" creation.

Mental stress is high.When the pressure is high, it is difficult for people to mention "sexuality". If they are eager to have children, it will make the situation worse and affect their performance in bed. In this case, it's better to communicate with your wife, find ways to relieve stress and anxiety together, and go to battle easily, in order to make "good pregnancy" come.