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.
Headaches may be caused by anything between stress and tiredness. It may also be the result of factors like alcohol, eye strain, sinus infection or a poor posture! Basically, they are factors that can be controlled by a person. There is no heredity involved in normal headaches.