Trees Provide Habitat for Wildlife. It is only natural that wherever trees are planted, wildlife and other plants are sure to follow. Trees provide shelter and food for a variety of birds and small animals, such as squirrels and beavers.
The only real medical reason you could be unusually tired during your period is if you have anemia, which is an iron deficiency. For some women who are anemic and have a very heavy period, the first day can be a doozy. However, this group is in the minority.
Diarrhea, as well as other gastrointestinal symptoms such as bloating and nausea, may also occur during the week prior to your period. In this case, the diarrhea may be part of a group of symptoms, usually including mild mood changes, called premenstrual syndrome (PMS).