Although 35.6°C is slightly below the normal body temperature standard, it may still be normal and needs to be analyzed in context. The body temperature of the human body fluctuates slightly and varies from part to part and at different times of the day. In the average person, the oral temperature ranges from 36.3°C to 37.2°C, the axillary temperature from 36°C to 37°C, and the rectal temperature from 36.5°C to 37.7°C. 35.6°C is slightly lower than this standard, but if there are no other symptoms, there is not much of a problem. If the body temperature decreases more than 1℃ in a day for a long period of time, other diseases may exist, such as hypothermia, hypothyroidism and other conditions. Therefore, a body temperature of 35.6℃ may be normal in some people, but if symptoms such as chills, shallow and slow breathing and bradycardia exist, you should consult a hospital respiratory medicine department for a clear diagnosis as soon as possible.