Great find, @sandramj - anything they find to try & negate this very real effect would be a bonus.
@Romla - DO be careful with the regular consumption of aspirin tho - my brother was taking small doses of it for decades (as heart attacks are the common cause of death in our family - I am the first with cancer!) Do you take it with food? I think it is recommended.
He ended up with a stomach bleed.
Keep an eye on your poo! If it ever appears almost black in colour (rather than the normal variety of brown tones) it could be an indication of an internal bleed!!