Sayyid Muhammad al-Baqir may Allah be pleased with him said, If you feel a weakness in your body and a burden on obedience and worship, then know that you have fallen short in reciting Bismillah al-Rahman al-Rahim. Indeed you have fallen short in saying Bismillah al-Rahman al-Rahim.
If the Muslim increases in saying Bismillah al-Rahman al-Rahim, Allah Almighty will give strength to their bodies and energy in their worship. This is something that has been tried and tested. Many experienced these benefits by reciting Bismillah al-Rahman al-Rahim continuously. And the very least that one should recite this is 100 a day. After which they feel strength and energy in their worship, obedience and other similar activities.
وَأَقِمِ ٱلصَّلَوٰةَ لِذِكْرِي
"And establish prayer for My remembrance."