Sawm while doing a difficult job

Sawm The merit of Sawm New moons, different sighting locations, and astronomy calculations Fasting on the Day of Doubt A Muslim moving from one country to another during Ramadan where the beginning and end of Sawm are different When can a traveler by plane break his fast? Abandoning Sawm intentionally Menstruating women Sawm of the elderly Sawm of the sick Sawm of a traveler Sawm of a pregnant woman and a breastfeeding mother Sawm while doing a difficult job Observing Sawm while studying Intention of observing Sawm Annulments of Sawm that require no Kaffarah Causes necessitating making up missed days and Kaffarah Reprehensible and desirable acts during Sawm Voluntary Sawm I`tikaf Ejaculation Among the issues of Imsak and Iftar Fasting of the menstruating and newly delivered woman Invalidators of Sawm Kaffarah for the missed fasts Fast on behalf of the deceased Making up for the missed days of Fast Voluntary fasting Laylat-u-lQadr