I'm afraid of thunder, not thunder, but lightning. Description (main symptoms, onset time): I have been afraid of thunder since last year, because during this time,

Thunder means that there is a large current flowing in the air, which requires two conditions. First, clouds accumulate a lot of charges. Second, the discharge path is smooth. There are two reasons why there is no thunder in winter. 1 It snows more in winter, and the charge generated by clouds is mainly due to updraft and its friction, so there is little updraft in winter. Second, the air humidity in winter is not as high as that in summer, and humid air is easy to conduct electricity, so the clouds in winter are not easy to discharge.