Eating and working with a full head of sweat can be caused by physiological phenomena, hyperthyroidism, perimenopausal syndrome and other reasons. 1. Physiological phenomenon: If you are in a hot environment, eating and working activities can cause an increase in heat dissipation from the skin, and the phenomenon of sweating occurs all the time. 2. Hyperthyroidism: patients often show increased metabolism, which can cause sweating during meals and work. 3. Perimenopausal syndrome: If a woman is in the perimenopausal period, due to the decline in estrogen levels, vasodilatation dysfunction may also cause sweating while eating and working. It is recommended to go to the hospital in time to eat and work with a full head of sweat, to clarify the cause, such as the need for treatment, should be standardized treatment under the guidance of the doctor.