People often sigh when they encounter sadness, anxiety, grief, pain or unsatisfactory things, which is a natural physiological phenomenon produced by the human body. For a long time, people have regarded sighing as a negative and pessimistic performance. However, according to the research of Japanese psychologists, when people are sad and melancholy, sighing twice will produce a sense of peace. When you are nervous and tired in your study and work, you will feel open-minded when you sigh. Even when you are happy, excited and satisfied, you will feel relaxed and happy by sighing. Psychologists and doctors measured their blood pressure before the athletes won the championship and before the candidates entered the examination room, and then let them sigh a few times, and they will find that their systolic blood pressure and diastolic blood pressure have dropped, their breathing and heartbeat are slower than before, and their psychological tension has improved. Therefore, sighing a few times before physical exercise every day can strengthen the respiratory muscles and improve the respiratory function, which can not only enhance the spirit, but also promote exercise.
Walking in the rain is good for health.
People think it is normal to walk in sunny days, but in some countries in Europe and America, more and more people have joined the ranks of walking in the rain. Meteorologists believe that walking in the rain has many fitness functions that can't be compared with walking in sunny days. A drizzle falls on the earth, which can wash away dirt, purify the air and make the road cleaner. In addition, when the sun sets and the drizzle begins to fall before the rain, a large number of negative ions will be produced, which is called "air vitamin" and can lower blood pressure. Walking in the drizzle outside will also help to eliminate the emotional depression caused by rainy weather. For those pedestrians who are wet by rain, rain is like a natural cold bath, which can greatly enhance the adaptability of the body to changes in the external environment.
Exercise at night is good for health.
Most people have the habit of exercising in the morning, thinking that it can refresh themselves. However, foreign studies show that evening exercise is also beneficial. A study in an American university pointed out that all kinds of activities of human body are controlled by biological clock, and the highest and lowest points of human physical strength have certain regularity within 24 hours a day, while evening is an important time for physical strength to reach the highest point, and the sensitivity and adaptability of human body reaction reach the peak during this time, and there is also the most stable rate of heart rate and blood pressure rise. Choosing to exercise during this time is not easy to cause the heart rate to accelerate and the blood pressure to rise faster, which is beneficial to health. Research also shows that evening exercise closer to sleep time will cause fatigue, thus promoting faster sleep. In addition, evening exercise is more suitable for mental workers after a day's mental work. There are many things on their minds, such as choosing a quiet place half an hour after dinner, relaxing and stretching their bones and muscles, which can not only help refresh their minds, but also improve their sleep state, killing two birds with one stone.