Do you have any information about winter?

Winter is the fourth season of the year in some areas. As the weather turns cold (except in equatorial areas), it means silence and desolation in many areas. When the cold current strikes, living things will reduce their life activities, many plants will shed leaves, animals will hibernate, and some are called hibernation. Migratory birds will fly to warm places for the winter.

Signs of life in winter

1. Squirrels dig holes near winter to bury the food they find, and then sleep in tree holes in winter. When they are hungry, they get up and dig out the food buried in the ground to eat. In addition, they can put eighteen pine nuts in their cheeks, fill them first, and then go to bed.

2. Mantis can be made into large pieces of eggs, each with 300 to 400 eggs, which together with secretions form an oocyst. Outside is a thick protective layer, attached to the trunk of the sun, not afraid of snow, ice and cold wind.

Extended data:

Tips for keeping warm in winter:

1, temperature control. In winter, the temperature difference between indoor and outdoor is large, the ventilation is not smooth, and some people have poor body temperature regulation ability, which is easy to cause diseases. It is suggested that the indoor temperature should be controlled at 18℃~20℃, and the maximum temperature should not exceed 26℃.

2. Get more sunshine. It is best for the elderly to go out to bask in the sun during the sunny period from 10 to 3 pm. This helps to supplement vitamin D, increase the absorption of calcium by human body, prevent osteoporosis and improve cold resistance.

References:

Baidu Encyclopedia-Winter

References:

People's Network-Seven Warm-up Ways