אות - קסז

Regarding what our Sages o.b.m. said (Berachos 58b; Kesuvos 62a): "A sigh breaks the body of a person" — he related that for him it was literally so. For in his youth at the time when he toiled in the service of Hashem, sometimes he would make a certain sigh — and afterward he would test himself whether he could lift his hands and he could not — for his body was literally broken from his sigh.