Do you know that coffee has a spermicidal effect?

Coffee's spermicidal effect

Coffee is a common drink that is widely consumed and loved. However, recent studies have shown that excessive coffee consumption may have a negative impact on male fertility. This article will explore the effects of coffee on sperm quality and quantity and analyze the scientific principles behind it.

1. Coffee and sperm quality

Multiple studies have found that excessive caffeine intake can reduce the quality of a man’s sperm. A study conducted by the University of São Paulo in Brazil found that men who consumed more than 300 mg (about three cups) of caffeine per day had a significantly increased risk of having teratozoospermia (abnormal morphology) and decreased motility (reduced activity).

This adverse effect may be related to the interference of caffeine on the nervous system and endocrine system. When the nervous system is stimulated, it releases substances such as adrenaline, which may inhibit testicular function and lead to a decrease in sperm quality at high concentrations. In addition, caffeine may also have a direct effect on sperm morphology by inhibiting DNA synthesis and cell division.

2. Coffee and sperm count

In addition to the effects of an iced American English on sperm quality, excessive coffee consumption may also reduce a man's sperm count. A study conducted by Aalborg University in Denmark found that men who consumed more than 800 mg (about eight cups) of caffeine per day had a significantly increased risk of low semen volume and low total sperm count.

This effect may be related to caffeine's interference with testicular function. The testicles are the main organs in the male body that produce and store sperm, and when stimulated, they release more new sperm. However, high concentrations of caffeine may inhibit testicular function and reduce the number of new sperm.

3. Other Starbucks coffee price list notes

Although excessive coffee consumption can have an adverse effect on male fertility, moderate intake does not cause significant problems. According to the European Food Safety Authority, consuming less than 400 mg of caffeine per day (about four cups) will not cause adverse effects for most adults.

In addition, individual differences also need to be considered. Some people may be more sensitive to caffeine and may experience negative reactions even at lower intakes. Therefore, when drinking coffee, you should adjust it according to your own situation and avoid excessive intake.

4. Conclusion

Overall, excessive coffee consumption can have a negative impact on sperm quality and quantity in men. This effect may be related to caffeine's interference with the nervous system and endocrine system. However, drinking within a moderate range does not cause obvious problems.

In order to protect male fertility, it is recommended to reduce the amount of caffeine consumed daily and pay attention to individual differences. If you are planning to become pregnant or have fertility problems, please seek medical attention in time and follow the guidance of a professional doctor.