Every spring, some people with allergies inevitably experience a "battle" with pollen. Many people may be confused: they have already paid attention to protection, and they stay away from flowers in spring, why do they still have "pollen allergies"?
In fact, many of the pollen that can cause allergies is spread by the wind. Pollen from trees and weeds such as cypress and salicaceae will "float" to people under the action of wind, and be inhaled by the human body, causing allergic reactions.
Therefore, the culprit of pollen allergies may not be flowers, but trees and grasses.
In addition to pollen allergies, infectious diseases and "spring sleepiness" that occur frequently in spring are also problems that plague people. Today, CCTV News has prepared a set of "Seasonal Treasure Books" for you, let's learn about spring protection knowledge↓↓↓
Source: CCTV News