A miscarriage can be a common cause of brown to black vaginal bleeding. Not all the women realize that they are pregnant until there is an abnormally heavy bleed particularly consisting of large clots or the color varying from the normal period blood.
Boost Your Metabolism in 15 Minutes 4 Moves to Rev Your Metabolism Kick calorie burning into overdrive with this quick full-body workout Read more: Exercises that Boost Your Metabolism - How to Boost Your Metabolism - Woman's Day.
Exercise is the only effective and safe way of increasing your metabolism. If we are going to influence metabolism, muscle activity is the only way we can do it and exercise is the most effective way. Drugs that increase muscle metabolism would help, but the adverse effects prohibit their use.