Does coffee affect your health? Does drinking coffee affect sleep?

Does coffee affect your health?

Whether coffee affects health is a topic of great concern to many people, and scientists have been debating it for many years. But so far, scientific research has not found conclusive evidence that moderate consumption of coffee is harmful to human health. Between 1970 and 1980, the results of this study were usually negative. Extensive media coverage makes people feel uneasy about the caffeine in their diet.

In the 1990s, due to a more rigorous and accurate testing process and a better understanding of other aspects, such as alcohol consumption, exercise habits and smoking, these studies have now been able to clarify some unresolved arguments in previous studies. In particular, it has provided a lot of new knowledge about caffeine and health.

Many studies have shown that caffeine is actually good for the human body in many ways. For example, coffee can stimulate athletes to create better results, and it is found that the moderate stimulation caused by coffee is conducive to many daily activities, such as relieving work stress, refreshing effect when preparing homework, and so on. Moderate consumption of coffee will not affect human health, but is a good pick-me-up drink, almost no side effects.

Does drinking coffee affect sleep?

Coffee many people have the experience of being too excited to sleep after drinking coffee, because there is a conductive substance called adenylate in the human body, which can control nerve activity. produce slow breathing, reduced mood, reduced gastric acid secretion and diuretic effects. On the other hand, caffeine will fake adenosine, making the body think that the effect of adenosine has taken place, making you feel energetic, increased stomach acid, urinate more frequently, and naturally less willing to fall asleep. It is worth noting that the brief awakening caused by this caffeine does not mean that physical strength is really restored. In addition, everyone has a different metabolic rate of caffeine, so their sensitivity to caffeine varies, so some people don't feel that their sleep is affected after drinking coffee. Therefore, a cup of hot coffee after getting up in the morning can exhilarate the body and mind and make the mood more comfortable, while it may cause insomnia at night.

Will coffee cause calcium loss?

In recent years, as people pay more and more attention to the problem of calcium loss and osteoporosis, there is also considerable doubt about coffee. As for the relationship between caffeine intake and osteoporosis, there is no direct evidence that caffeine causes osteoporosis, but some studies have shown that caffeine increases calcium loss. Therefore, it is suggested that coffee lovers should eat more high-calcium foods to supplement calcium, such as preparing cheese slices or cheese cake to enjoy with coffee, which can not only supplement calcium, but also make the coffee more delicious.

Coffee and beauty?

So far, none of the studies have shown that caffeine and melanin in coffee are absolutely related to the increase of melanin or aging of the skin. On the contrary, a moderate amount of caffeine can speed up metabolism, promote digestion, improve constipation, and improve skin roughness. About caffeine can accelerate metabolism, there is a saying that coffee will accelerate calorie burning, to achieve the effect of weight loss, the theory is basically correct, but this calorie burning is not enough to cause weight loss. If sugar and cream are added to the coffee, the calorie calculation is even more inconsistent with the principle of weight loss.

20 Coffee is not suitable for people

[3] suffering from hypertension, coronary heart disease, arteriosclerosis and other diseases-long-term or heavy consumption of coffee can cause cardiovascular disease.

Older women-Coffee reduces calcium and causes osteoporosis. After menopause, women need to add ten times the amount of calcium every day.

People with stomach problems-drinking too much coffee can worsen stomach problems.

Pregnant women-drinking too much coffee can lead to fetal malformation or miscarriage.

People with vitamin B1 deficiency-vitamin B1 can maintain the balance and stability of the nervous system, and coffee has a destructive effect on it.

Cancer patients-drinking too much coffee is at risk of cancer to normal people.