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.
Low thyroid production can lead to a dull headache, and it can also lead to migraines. Some of the symptoms of this condition are depression, weight gain, cold intolerance and fatigue, and it can run in the family as well. When the blood sugar level is low it can result in hypoglycemia, which also causes headaches.