Forests are essential for life on earth. Three hundred million people worldwide live in forests and 1.6 billion depend on them for their livelihoods. Forests also provide habitat for a vast array of plants and animals, many of which are still undiscovered. They protect our watersheds.
The other cause is migraine headaches that can affect some women prior to their period following ovulation. Nausea typically accompanies migraines regardless of the cause of the headache. In this case the headaches are caused by the hormonal imbalance and they can be completely debilitating along with the nausea.
One of the most common causes for headaches, both during the second trimester of pregnancy and any other time, is stress. The anxiety that accompanies pregnancy can weigh heavily on the brow of the pregnant woman. By the time she is in her second trimester, her body has already been through quite a bit, but there is still quite a bit to go.