Morning breath is a complaint that most people have routinely. It is mainly because of the dryness of the mouth, bacteria and bad habits. The good news is that there are ways to reduce morning breath and some of them are better oral hygiene, inhibiting dry mouth, etc.
Yes, it is safe to swim while you on periods. Period blood doesn't flow outside the vagina like it usually does due to the counter-pressure of the water. But You still need to wear some a tampon or a menstrual cup to avoid getting into a sticky situation.
Resin tooth filling typically contains a filler particle such as quartz, which provides the mixture's strength and color. It is costly as compared to silver tooth filling.
In some cases, the change in period blood color can indicate a health problem like fibroids, low estrogen levels, and even vaginosis.