A completely different take on this phrase is that discretion means being discrete as in protecting people or information from exposure in some manner. If one is to be perceived as possessing valor by others, then they cannot express this by being merely brash and powerful.
Probiotics are essential (for at least a month or two after the antibiotics stop, depending on the potency) when you have had antibiotics to replenish the beneficial bacteria.
In order to understand how probiotics can cause problems for your digestive tract, it is important to understand what probiotics are and how they work. Probiotics are substances that contain bacteria that are similar to the microorganisms normally found in your digestive tract.