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.
When you have morning sickness... but you're not pregnant: Doctors explain the OTHER reasons why people wake feeling ill. Dr Brian Morton said morning sickness could be caused by hormones. Symptoms can include nausea, sweating or palpitations. Other causes include reflux, sleep apnoea, stress or depression.