Spring, also known as spring, is the first of the four seasons, which refers to the period from beginning of spring to long summer, including solar terms such as beginning of spring, rain, fright, vernal equinox, Qingming and Grain Rain. It's the season when everything comes back to life.

Summer: early May to the end of July.

Summer, the second season of the four seasons, is also called "Haotian" in English, which is the hottest season in the northern hemisphere. China is used to taking long summer as the beginning of summer, and the summer in meteorology will be postponed to about 25 days after long summer.

Autumn: early August1end of October

Autumn, also known as autumn, is the third season throughout the year, and the transition season from summer to winter is from 9 to 1 1 month in the northern hemisphere, from March to May in the southern hemisphere, and from autumnal equinox to winter solstice in astronomy.

Winter: 1 1 early month 1 end of month.

Winter, also called winter. The coldest season of the year in the northern hemisphere, the others are spring, summer and autumn. Astronomically speaking, it is from1February to February, and China used to refer to the three-month period from beginning of winter to beginning of spring.

Extended data:

The four seasons are divided according to the length of day and night and the change of sun height. In the division of the four seasons, the sun's apparent position on the ecliptic is taken as the basis, and the bisector, the second solstice or the four-day is taken as the boundary. However, the boundary points used by eastern and western countries in dividing the four seasons are not exactly the same.

summer

The delicate little lotus bud reveals a sharp angle from the water, and a naughty little dragonfly stands on its head. Summer gives people a feeling of vitality. As the temperature rises, human body functions are completely awakened, and people may try some strenuous exercise. As everyone knows, if you don't pay attention to some precautions, it will also bring harm to your body. People's Network Anhui Channel once pointed out that summer sports should follow the following principles:

First, it is necessary to replenish water in summer. It is recommended to drink two glasses of water half an hour before exercise. If it is outdoor sports, you must bring a water bottle, and you can also add some physiological salt to the water to replenish the salt lost by your body in time. When drinking water, you should not drink too much at a time. You should try to replenish water by increasing the frequency of drinking water.

Second, try to choose indoor sports, such as swimming and yoga. These indoor exercises can not only avoid heatstroke, but also protect the skin from ultraviolet rays. In the morning, you can do some outdoor aerobic exercise to relax yourself. If you do outdoor sports at noon, you must take sun protection measures, such as wearing sunglasses and applying sunscreen.

autumn

Autumn pavilion in Chi Jing, the rain is cool. Off the colorful summer, we ushered in the autumn harvest. At this time, I believe many people have achieved the ideal exercise effect. However, in the face of the growing temperature difference between day and night in autumn, we need to protect ourselves more. Hubei Channel of People's Daily once pointed out that before doing morning exercises in autumn, you should drink some sugar water or eat some fruit to supplement the energy your body needs. Of course, we should also pay attention to keep warm and warm up before exercise.

References:

Baidu Encyclopedia-Four Seasons