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.
If a woman is taking birth control pills, her headaches are most likely to occur during her off week, when estrogen levels drops. Some women start getting migraines only at menopause, when their period stops. For others, menopause is the first real relief from migraines.