It is difficult for women who drink instant coffee to get pregnant.

People in their 20s may not have the idea of "when to have a baby". But recently, the American magazine Health pointed out that no matter how young you are, you should "maintain" your fertility from the age of 20. Pay special attention to a reasonable diet and avoid toxic and harmful substances in the environment.

A number of new studies have found that the hard plastic packaging of many foods and drinks contains bisphenol A, which reduces cell division in the womb and prevents embryos from attaching to the uterine wall. For safety's sake, it is best to use less microwave to heat food containers made of polycarbonate and eat less canned food. In addition, some foods contain trans fatty acids that are bad for both men and women.

Zeng Jing, director of the Nutrition Department of the Guangdong General Hospital of the Armed Police, said that instant coffee and milk tea, which are very popular among young men and women, are not good things. They contain large amounts of milk essence, a trans fatty acid that reduces male hormone secretion and inhibits sperm motility; it also affects egg quality and increases the risk of infertility and fetal malformations. Trans fatty acids can affect hormone synthesis, which may lead to irregular menstruation, sexual dysfunction and so on.

Graveau, director of the University Education Research Center in New York, said in an interview with Health magazine that sexually transmitted diseases can greatly reduce women's chances of becoming pregnant, so proper abstinence and condom use are necessary.

Although there is no "secret recipe for pregnancy", good eating habits can keep hormone levels stable. Graveo recommends that people eat more fresh fruits and vegetables and replace refined carbohydrates with whole grains in case insulin levels rise rapidly and inhibit ovulation.

Whether too thin or overweight, it lowers women's hormone levels and inhibits ovulation. Obese men also encounter problems with low sperm count and quality, so it is important to keep fit. Men also wear less tight trousers. Women should quit smoking to prevent the loss of eggs faster.